EMT Practice Test

1. Question Content...


Question List

Question1: A company recently migrated a message processing system to AWS. The system receives messages into an ActiveMQ queue running on an Amazon EC2 instance. Messages are processed by a consumer application running on Amazon EC2. The consumer application processes the messages and writes results to a MySQL database funning on Amazon EC2. The company wants this application to be highly available with tow operational complexity Which architecture otters the HGHEST availability?

Question2: A company uses Amazon EC2 instances to host its internal systems As pan of a deployment operation, an administrator tries to use the AWS CLI to terminate an EC2 instance However, the administrator receives a 403 (Access Dented) error message The administrator is using an IAM role that has the following 1AM policy attached:

What is the cause of the unsuccessful request?

Question3: A solutions architect must provide a fully managed replacement for an on-premises solution that allows employees and partners to exchange files The solution must be easily accessible to employees connecting from on-premises systems, remote employees, and external partners Which solution meets these requirements?

Question4: A company is preparing to migrate its on-premises application to AWS. The application consists of application servers and a Microsoft SQL Server database The company cannot migrate the database to a different engine because SQL Server features are used in the application's NET code The company wants to maximize availability and minimize operational overhead.
What should a solutions architect do to meet these requirements?

Question5: An ecommerce company hosts its analytics application in the AWS Cloud. The application generates about 300 MB of data each month. The data is stored in JSON format The company is evaluating a disaster recovery solution to back up the dat a. The data must be accessible in milliseconds if it is needed, and the data must be kept for 30 days.
Which solution meets these requirements MOST cost-effectively?

Question6: The following IAM policy is attached to an IAM group. This is the only policy applied to the group.


What are the effective IAM permissions of this policy for group members?

Question7: A global company plans to track and store information about local allergens in aj Amazon DynamoDB table and query this data from its website The website traffic will fluctuate The combined read capacity units (RCUs) and write capacity units (WCUs) will range from 10 per second to 10.000 per second, depending on the severity of the conditions for the given day A solutions architect must design a solution that avoids throttling issues and manages capacity efficiently The solution also must provide the ability to set a maximum number of capacity units What should the solutions architect do to meet these requirements?

Question8: A company is hosting a web application from an Amazon S3 bucket. The application uses Amazon Cognito as an identity provider lo authenticate users and return a JSON Web Token (JWT) that provides access to protected resources that am restored in another S3 bucket.
Upon deployment of the application, users report errors and are unable to access the protected content. A solutions architect must resolve this issue by providing proper permissions so that users can access the protected content.
Which solution meets these requirements?

Question9: A medical research lab produces data that is related to a new study. The lab wants to make the data available with minimum latency to clinics across the country for their on-premises file-based applications. The data files are stored in an Amazon S3 bucket that has read-only permissions for each clinic.
What should a solutions architect recommend to meet these requirements?

Question10: A company wants to use high performance computing (HPC) infrastructure on AWS for financial risk modelling. The company's HPC workloads run on Linux. Each HPC workflow runs on hundreds of Amazon EC2 Spot Instances, is short-lived, and generates thousands of output files that are ultimately stored in persistent storage for analytics and long-term future use.
The company seeks a cloud storage solution that permits the copying of on-premises data to long-term persistent storage to make data available for processing by all EC2 instances. The solution should also be a high performance file system that is integrated with persistent storage to read and write datasets and output files Which combination of AWS services meets these requirements?

Question11: A solutions architect is planning the deployment of a new static website The solution must minimize costs and provide at least 99% availability Which solution meets these requirements?

Question12: A recently created startup built a three-tier web application. The front end nas static content The application layer is based on mtcroservtces User data is stored as JSON documents that need to be accessed with low latency. The company expects regular traffic to be tow during the first year with peaks in traffic when it publicizes new features every month. The startup team needs to minimize operational overhead costs What should a solutions architect recommend to accomplish this?

Question13: A company has an on-premises MySQL database that handles transactional data The company is migrating the database to the AWS Cloud The migrated database must maintain compatibility with the company's applications that use the database The migrated database also must scale automatically during periods of increased demand.
Which migration solution will meet these requirements?

Question14: A company's order system sends requests from clients to Amazon EC2 instances The EC2 instances process the orders and then store the orders in a database on Amazon RDS. Users report that they must reprocess orders when the system fails. The company wants a resilient solution that can process orders automatically if a system outage occurs.
What should a solutions architect do to meet these requirements?

Question15: A company is migrating a large, mission-critical database to AWS. A solutions architect has decided to use an Amazon RDS for MySQL Multi-AZ DB instance that Is deployed with 80,000 Provisioned IOPS for storage The solutions architect is using AWS Database Migration Service (AWS DMS) to perform the data migration. The migration is taking longer than expected, and the company wants to speed up the process. The company's network team has ruled out bandwidth as a limiting factor.
Which actions should the solutions architect take to speed up the migration? (Select TWO.)

Question16: A company wants to use AWS Systems Manager to manage a fleet ol Amazon EC2 instances. According to the company's security requirements, no EC2 instances can have internet access. A solutions architect needs to design network connectivity from the EC2 instances to Systems Manager while fulfilling this security obligation.
Which solution will meet these requirements?

Question17: A survey company has gathered data for several years from areas m\ the United States. The company hosts the data in an Amazon S3 bucket that is 3 TB m size and growing. The company has started to share the data with a European marketing firm that has S3 buckets The company wants to ensure that its data transfer costs remain as low as possible Which solution will meet these requirements?

Question18: A solutions architect needs to connect a company's corporate network to its VPC to allow on-premises access to its AWS resources. The solution must provide encryption of all traffic between the corporate network and the VPC at the network layer and the session layer. The solution also must provide security controls to prevent unrestricted access between AWS and the on-premises systems.
Which solution meets these requirements?

Question19: A company has three VPCs named Development, Testing and Production in the us-east-1 Region. The three VPCs need to be connected to an on-premises data center and are designed to be separate to maintain security and prevent any resource sharing A solutions architect needs to find a scalable and secure solution What should the solutions architect recommend?

Question20: A solutions architect is implementing a document review application using an Amazon S3 bucket for storage. The solution must prevent accidental deletion of the documents and ensure that all versions of the documents are available Users must be able to download, modify, and upload documents.
Which combination of actions should be taken to meet these requirements? (Select TWO.)

Question21: A company has a custom application with embedded credentials that retrieves information from an Amazon RDS MySQL DB instance. Management says the application must be made more secure with the least amount of programming effort.
What should a solutions architect do to meet these requirements?

Question22: A company is planning to use Amazon S3 to store images uploaded by its users. The images must be encrypted at rest in Amazon S3. The company does not want to spend time managing and rotating the keys, but it does want to control who can access those keys.
What should a solutions architect use to accomplish this?

Question23: A disaster response team is using drones to collect images of recent storm damage. The response team's laptops lack the storage and compute capacity to transfer the images and process the data While the team has Amazon EC2 instances for processing and Amazon S3 buckets for storage, network connectivity is intermittent and unreliable. The images need to be processed to evaluate the damage.
What should a solutions architect recommend'?

Question24: A development team needs to host a website that will be accessed by other teams. The website contents consist of HTML. CSS, client-side JavaScript, and images Which method is the MOST cost-effective for hosting the website?

Question25: A manufacturing company wants to implement predictive maintenance on its machinery equipment The company will install thousands of loT sensors that will send data to AWS in real time. A solutions architect is tasked with implementing a solution that will receive events in an ordered manner for each machinery asset and ensure that data is saved for further processing at a later time Which solution would be MOST efficient^

Question26: A company hosts its web applications in the AWS Cloud. The company configures Elastic Load Balancers to use certificate that are imported into AWS Certificate Manager (ACM). The company's security team must be notified 30 days before the expiration of each certificate.
What should a solutions architect recommend to meet the requirement?

Question27: A company wants to experiment with individual AWS accounts tor its engineer team The company wants to be notified as soon as the Amazon EC2 instance usage for a given month exceeds a specific threshold for each account.
What should a solutions architect do to meet this requirement MOST cost-effectively?

Question28: A startup company is hosting a website for its customers on an Amazon EC2 instance. The website consists of a stateless python application and a MySQL database. The website serves only a small amount of traffic. The company is concerned about the reliability of the instance and needs to migrate to a highly available architecture. The company cannot modify the application code.
Which combination of actions should a solution architect take to achieve high availability for the website? (Select TWO.)

Question29: A web application must send order data to Amazon S3 to support near-time processing. A solutions architect needs to create an architecture that is scalable and fault tolerant.
Which solutions meet these requirements? (Select TWO.)
Write the order event to an Amazon DynamoDB table DynamoDB table. Use Amazon DynamoDB

Question30: A company is adopting serverless architecture The company's solutions architect wants to modernize an application that has source data in csv format A large team of developers needs to use the application to run SQL queries and reports on demand by joining data across multiple tables Which combination of actions will meet these requirements MOST cost-effectively? (Select TWO )

Question31: A company needs to provide its employees with secure access to confidential and sensitive files. The company wants to ensure that the tiles can be accessed only by authorized users. The files must be downloaded securely to the employees' devices.
The files are stored in an on-premises Windows file server. However, due to an increase in remote usage, the file server is running out of capacity.
Which solution will meet these requirements?

Question32: A ride-sharing company stores historical service usage data as structured csv data files in Amazon S3 A data analyst needs to perform SQL queries on this data A solutions architect must recommend a solution that optimizes cost-effectiveness for the queries Which solution meets these requirements?

Question33: A company is running a mission-critical application on Amazon EC2 instances henna an Application Load Balancer The instances run in an Auto Scaling group in a single AWS Region The application is using a database in Ama2on Aurora as the data tier. A recent audit revealed that the current deployment of Aurora is not highly available.
What should a solutions architect do to improve the availability of the database

Question34: A law firm needs to share information with the public. The information includes hundreds of files that must be publicly readable. Modifications or deletions of the files by anyone before a designated future date are prohibited.
Which solution will meet these requirements in the MOST secure way?

Question35: What should a solutions architect do to ensure that all objects uploaded to an Amazon S3 bucket are encrypted?

Question36: A company has an application that uses an Amazon OynamoDB table lew storage. A solutions architect discovers that many requests to the table are not returning the latest dat a. The company's users have not reported any other issues with database performance Latency is in an acceptable range.
Which design change should the solutions architect recommend?

Question37: A company's web application uses an Amazon RDS PostgreSQL DB instance to store its application data During the financial closing period at the start of every month, Accountants run large queries that impact the database's performance due to high usage The company wants to minimize the impact that the reporting activity has on the web application What should a solutions architect do to reduce the impact on the database with the LEAST amount of effort?

Question38: A company is testing an application that runs on an Amazon EC2 Linux instance. The instance contains a data volume of 500 GB that consists of a single Amazon Elastic Block Store {Amazon EBS) General Purpose SSD (gp2) volume The application is now ready for production use and will be installed on multiple EC2 instances that run m an Auto Scaling group All instances need access to the data that was stored on the 500 GB volume. The company needs a highly available and fault-tolerant solution that does not introduce any significant changes to the applications code Which solution meets these requirements''

Question39: A company needs to retain its AWS CloudTrail logs (or 3 years. The company is enforcing CloudTrail across a set of AWS accounts by using AWS Organizations from the parent account. The CloudTrail target S3 bucket is configured with S3 Versioning enabled An S3 Lifecycle policy is in place to delete current objects after 3 years.
After the fourth year of use of the S3 bucket, the S3 bucket metrics show that the number of objects has continued to rise. However, the number of new CloudTrail logs that are delivered to the S3 bucket has remained consistent.
Which solution will delete objects that are older than 3 years in the MOST cost-effective manner?

Question40: A company has more than 5 TB of file data on Windows file servers that run on premises Users and applications interact with the data each day The company is moving its Windows workloads to AWS. As the company continues this process, the company requires access to AWS and on-premises file storage with minimum latency The company needs a solution that minimizes operational overhead and requires no significant changes to the existing file access patterns. The company uses an AWS Site-to-Site VPN connection for connectivity to AWS What should a solutions architect do to meet these requirements?

Question41: A company runs a multi-tier web application that hosts news content. The application runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an EC2 Auto Scaling group across multiple Availability Zones and use an Amazon Aurora database A solutions architect needs to make the application more resilient to periodic increases in request rates.
Which architecture should the solutions architect implement? (Select TWO.)

Question42: A company runs a fleet of web services using an Amazon RDS for PostgreSQL DB instance. Alter a routine compliance check, tire company sets a standard that requires a recovery point objective (RPO) of less than 1 second for all Its production databases.
Which solution meets these requirements?

Question43: A company is preparing to store confidential data in Amazon S3 For compliance reasons the data must be encrypted at rest Encryption key usage must be logged tor auditing purposes. Keys must be rotated every year.
Which solution meets these requirements and the MOST operationally efferent?

Question44: A company hosts a web application on multiple Amazon EC2 instances The EC2 instances are in an Auto Scaling group that scales in response to user demand The company wants to optimize cost savings without making a long-term commitment Which EC2 instance purchasing option should a solutions architect recommend to meet these requirements'?

Question45: A company has an application that uses Amazon Elastic File System (Amazon EFS) to store dat a. The files are 1 GB in size or larger and are accessed often only for the first few days after creation The application data is shared across a cluster of Linux servers The company wants to reduce storage costs for the application.
What should a solutions architect do to meet these requirements?

Question46: A company wants to move a multi-tiered application from on premises to the AWS Cloud to improve the application's performance. The application consists of application tiers that communicate with each other by way of Which solution moots these and is the MOST operationally efficient?

Question47: A company needs guaranteed Amazon EC2 capacity in three specific Availability Zones in a specific AWS Region for an upcoming event that will last 1 week.
What should the company do to guarantee the EC2 capacity?

Question48: A company has created a multi-tier application for its ecommerce website The website uses an Application Load Balancer that resides in the public subnets, a web tier in the public subnets, and a MySQL cluster hosted on Amazon EC2 instances in the private subnets. The MySQL database needs to retrieve product catalog and pricing information that is hosted on the internet by a third-party provider A solutions architect must devise a strategy that maximizes security without increasing operational overhead What should the solutions architect do to meet these requirements?

Question49: A company is deploying an application that processes streaming data in near-teal time. The company plans to use Amazon EC2 instances for the workload The network architecture must be configurable to provide the lowest possible latency between nodes.
Which networking solution meets these requirements?

Question50: A solutions architect is designing a workload that will store hourly energy consumption by business tenants in a building The sensors will feed a database through HTTP requests that will add up usage for each tenant The solutions architect must use managed services when possible The workload will receive more features in the future as the solutions architect adds independent components Which solution will meet these requirements with the LEAST operational overhead?

Question51: A company is hosting its website by using Amazon EC2 instances behind an Elastic Load balancer across multiple Availability Zones. The instances run in an EC2 Scaling group. The website uses Amazon Elastic Block Store (Amazon EBS) volume to store product manuals for users to download. The company updates the product content often, so new instances launched by the Auto Scaling group often have dat a. It can take to 30 minutes for the new instances to receive all the updates. The updates also require the EBS volumes to be resized during business hours.
The company wants to ensure that the product manuals are always up to data on all instances and that the architecture adjusts quickly to increased user demand. A solutions architect needs to meet these requirements without causing the company lo update Its application code or adjust its website What should the solutions architect do to accomplish this goal?

Question52: A company's ecommerce website has unpredictable traffic and uses AWS Lambda functions to directly access a private Amazon RDS for PostgreSQL DB instance. The company wants to maintain predictable database performance and ensure that the Lambda invocations do not overload the database with too many connections.
What should a solutions architect do to meet these requirements?

Question53: A company is running a media application in an on-premises data center and has accumulated 500 TB of data The company needs to migrate the data from the application s existing network-attached file system to AWS Users rarely access data that is older than 1 year Which solution meets these requirements MOST cost-effectively'

Question54: A company is running several business applications in three separate VPCs within the us-east-1 Region. The applications must be able to communicate between VPCs. The applications also must be able to consistently send hundreds of gigabytes of data each day to a latency-sensitive application that runs in a single on-premises data center.
A solutions architect needs to design a network connectivity solution that maximizes cost-effectiveness.
Which solution meets these requirements?

Question55: A company has hired an external vendor to perform work in the company's AWS account The vendor uses an automated tool that is hosted in an AWS account that the vendor owns The vendor does not have IAM access to the company's AWS account How should a solutions architect grant this access to the vendor?

Question56: A company runs a highly available image-processing application on Amazon EC2 instances in a single VPC The EC2 instances run inside several subnets across multiple Availability Zones. The EC2 instances do not communicate with each other However, the EC2 instances download images from Amazon S3 and upload images to Amazon S3 through a single NAT gateway The company is concerned about data transfer charges What is the MOST cost-effective way for the company to avoid Regional data transfer charges?

Question57: A company's website is used to sell products to the public The site runs on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB) There is also an Amazon CloudFront distribution and AWS WAF Is being used to protect against SQL injection attacks The ALB is the origin for the CloudFront distribution A recent review of security logs revealed an external malicious IP that needs to be blocked from accessing the website What should a solutions architect do to protect the application?

Question58: A company has an application that processes customer of tiers. The company hosts the application on an Amazon EC2 instance that saves the orders to an Amazon Aurora database. Occasionally when traffic Is high, the workload does not process orders fast enough.
What should a solutions architect do to write the orders reliably to the database as quickly as possible?

Question59: A company runs an application on Amazon EC2 instances. The application is deployed in private subnets in three Availability Zones of the us-east-1 Region. The instances must be able to connect to the internet to download files The company wants a design that is highly available across the Region.
Which solution should be implemented to ensure that there are no disruptions to internet connectivity?

Question60: A company has on-premises servers that run a relational database The database serves high-read traffic for users in different locations The company wants to migrate the database to AWS with the least amount of effort The database solution must support high availability and must not affect the company's current traffic flow Which solution meets these requirements?

Question61: A company uses a simple state website and wants to host it on AWS. The company already has a domain that it uses for email. The company needs a hosting solution that supports HTTPS. Which solution will meet these requirements MOST cost-effectively?

Question62: A company is building an application that consists of several microservices. The company has decided to use container technologies to deploy its software on AWS The company needs a solution that minimizes the amount of ongoing effort for maintenance and scaling. The company cannot manage additional infrastructure Which combination of actions should a solutions architect take to meet these requirements? {Select TWO )

Question63: A company has an image processing workload running on Amazon Elastic Container Service {Amazon ECS) in two private subnets Each private subnet uses a NAT instance for Internet access All images are stored in Amazon S3 buckets The company is concerned about the data transfer costs between Amazon ECS and Amazon S3 What should a solutions architect do to reduce costs?

Question64: A company has a data ingestion workflow that includes the following components:
* An Amazon Simple Notation Service (Amazon SNS) topic that receives notifications about new data deliveries
* An AWS Lambda function that processes and stores the data
The ingestion workflow occasionally fails because of network connectivity issues. When tenure occurs the corresponding data is not ingested unless the company manually reruns the job. What should a solutions architect do to ensure that all notifications are eventually processed?

Question65: A solutions architect is deploying a distributed database on multiple Amazon EC2 instances. The database stores all data on multiple instances so it can withstand the loss of an instance. The database requires block storage with latency and throughput to support several million transactions per second per server.
Which storage solution should the solutions architect use?

Question66: A company allows users to upload and store photos through its website The website has users from all around the world. All images that users upload are stored in a centralized Amazon S3 bucket The company wants to increase the speed in which its entire user base can upload photos through the website.
What should a solutions architect recommend to meet these requirements?

Question67: A company stores can wordings on a monthly basis Users access lie recorded files randomly within 1year of recording, but users rarely access the files after 1year. The company wants to optimize its solution by allowing only files that ant newer than 1year old to be queried and retrieved as quickly as possible. A delay in retrieving older fees is acceptable Which solution meets these requirements MOST cost-effectively?

Question68: A company runs its Infrastructure on AWS and has a registered base of 700.000 users for res document management application The company intends to create a product that converts large pdf files to jpg Imago files. The .pdf files average 5 MB in size. The company needs to store the original files and the converted files. A solutions architect must design a scalable solution to accommodate demand that will grow rapidly over lime.
Which solution meets these requirements MOST cost-effectively?

Question69: A company has deployed a multiplayer game for mobile devices. The game requires live location tracking of players based on latitude and longitude. The data store for the game must support rapid updates and retrieval of locations.
The game uses an Amazon RDS for PostgreSQL DB instance with read replicas to store the location dat a. During peak usage periods, the database is unable to maintain the performance that is needed for reading and writing updates. The game's user base is increasing rapidly.
What should a solutions architect do to improve the performance of the data tier?

Question70: A company needs to implement a relational database with a multi-Region disaster recovery Recovery Point Objective (RPO) of 1 second and an Recovery Time Objective (RTO) of 1 minute Which AWS solution can achieve this?

Question71: A company has a three-tier application image sharing. The application uses an Amazon EC2 instance for the front-end layer, another EC2 instance tor the application layer, and a third EC2 instance for a MySQL database A solutions architect must design a scalable and nighty available solution mat requires the least amount of change to the application.
Which solution meets these requirement?

Question72: A solutions architect is designing the storage architecture tor a new web application used for storing and viewing engineering drawings All application components will be deployed on the AWS infrastructure.
The application design must support caching to minimize the amount of time that users wait for the engineering drawings to load The application must be able to store petabytes of data.
Which combination of storage and caching should the solutions architect use?

Question73: A solutions architect must design a database solution for a high-traffic ecommerce web application. The database stores customer profiles and shopping cart information. The database must support a peak load of several million requests each second and deliver responses in milliseconds The operational overhead for managing and scaling the database must be minimized Which database solution should the solutions architect recommend?

Question74: A company needs to store 160TB of data for an indefinite of time. The company must be able to use standard SQL and business intelligence tools to query all of the dat a. The data will be queried no more than twice each month.
What is the MOST cost-effective solution that meets these requirements?

Question75: A company is deploying a two-tier web application in a VPC. The web tier is using an Amazon EC2 Auto Scaling group with public subnets that span multiple Availability Zones. The database tier consists of an Amazon RDS for MySQL DB instance in separate private subnets. The web tier requires access to the database to retrieve product information.
The web application is not working as intended. The web application reports that it cannot connect to the database. The database is confirmed to be up and running. All configurations for the network ACLs. security groups, and route tables are still in their default states.
What should a solutions architect recommend to fix the application?

Question76: A company operates a two-tier application for image processing. The application uses two Availability Zones, each with one public subnet and one private subnet. An Application Load Balancer (ALB) for the web tier uses the public subnets. Amazon EC2 instances for the application tier use the private subnets.
Users report that the application is running more slowly than expected. A security audit of the web server log files shows that the application is receiving millions of illegitimate requests from a small number of IP addresses. A solutions architect needs to resolve the immediate performance problem while the company investigates a more permanent solution.
What should the solutions architect recommend to meet this requirement?

Question77: A company receives 10 TB of instrumentation data each day from several machines located at a single factory. The data consists of JSON files stored on a storage area network (SAN) in an on-premises data center located within the factory. The company wants to send this data to Amazon S3 where it can be accessed by several additional systems that provide critical near-real-lime analytics. A secure transfer is important because the data is considered sensitive.
Which solution offers the MOST reliable data transfer?

Question78: A company hosts a three-tier ecommerce application on a fleet of Amazon EC2 instances. The instances run in an Auto Scaling group behind an Application Load Balancer (ALB) All ecommerce data is stored in an Amazon RDS for ManaDB Multi-AZ DB instance The company wants to optimize customer session management during transactions The application must store session data durably Which solutions will meet these requirements? (Select TWO )

Question79: A news company that has reporters ail over the world is hosting its broadcast system on AWS The reporters send live broadcasts to the broadcast system The reporters use software on their phones to send live streams through the Real Time Messaging Protocol (RTMP).
A solutions architect must design a solution that gives the reporters the ability to send the highest quality streams. The solution must provide accelerated TCP connections back to the broadcast system.
What should the solutions a use to meet these requirements?

Question80: The DNS provider that hosts a company's domain name records is experiencing outages that cause service disruption for a website running on AWS The company needs to migrate to a more resilient managed DNS service and wants the service to run on AWS.
What should a solutions architect do to rapidly migrate the DNS hosting service?

Question81: A company is hosting its website on Amazon S3 and is using Amazon CloudFront to cache content The company has an upcoming product launch An employee accidentally published marketing content to the website before the official release of the product The company needs to remove the marketing content from the website as quickly as possible Which solution will meet these requirements?

Question82: A company is developing an Internal application that uses a PostgreSQL database. The company has decided to host the database on Amazon Aurora The application does not need to be highly available but data must be stored in multiple Availability Zones to maximize durability.
Which database configuration meets these requirements MOST cost-effectively?

Question83: A company is automating an order management application. The company's development team has decided to use SFTP to transfer and store the business-critical information files The files must be encrypted and must be highly available. The files also must be automatically deleted a month after they are created.
Which solution meets these requirements with the LEAST operational overhead?

Question84: A company is building a web application that serves a content management system The content management system runs on Amazon EC2 instances behind an Application Load Balancer (ALB) The EC2 instances run in an Auto Scaling group across multiple Availability Zones Users are constantly adding and updating files blogs and other website assets in the content management system A solutions architect must implement a solution in which all the EC2 instances share up-to-date website content with the least possible lag time.
Which solution meets these requirements?

Question85: A company hosts a marketing website in an on-premises data center. The website consists of static documents and runs on a single server. An administrator updates the website content infrequently and uses an SFTP client to upload new documents.
The company decides to host its website on AWS and to use Amazon CloudFront. The company's solutions architect creates a CloudFront distribution. The solutions architect must design the most cost-effective and resilient architecture for website hosting to serve as the CloudFront origin Which solution will meet these requirements?

Question86: A company has a web server running on an Amazon EC2 instance in public subnet with an Elastic IP address. The default security group is assigned to the EC2 instances. The default network ACL has been modified to block all traffic. A solution architect needs to make the web server accessible from everywhere on port 443.
Which combination of steps will accomplish this task? (Select TWO)

Question87: A company stores confidential data in an Amazon Aurora PostgreSQL database in the ap-southeast-3 Region The database is encrypted with an AWS Key Management Service (AWS KMS) customer managed key The company was recently acquired and must securely share a backup of the database with the acquiring company's AWS account in ap-southeast-3.
What should a solutions architect do to meet these requirements?

Question88: A company recently signed a contract with an AWS Managed Service Provider (MSP) Partner for help with an application migration initiative. A solutions architect needs to share an Amazon Machine Image (AMI) from an existing AWS account with the MSP Partner's AWS account. The AMI is backed by Amazon Elastic Block Store (Amazon EBS) and uses a customer managed customer master key (CMK) to encrypt EBS volume snapshots.
What is the MOST secure way for the solutions architect to share the AMI with the MSP Partner's AWS account?

Question89: A company stores project information in a shared spreadsheet. The company wants to create a web application to replace the spreadsheet The company has chosen Amazon DynamoDB to store the spreadsheet's data and is designing the web application to display the project information that is obtained from DynamoDB.
A solutions architect must design the web application's backend by using managed services that require minimal operational maintenance.
Which architectures meet these requirements? (Select TWO.)

Question90: A company has a remote factory that has unreliable connectivity. The factory needs to gather and process machine data and sensor data so that it can sense products on its conveyor belts and initiate a robotic movement to direct the products to the right location Predictable low-latency compute processing is essential for the on-premises control systems Which solution should the factory use to process the data?

Question91: A solutions architect must migrate a Windows Internet Information Services (IIS) web application to AWS The application currently relies on a file share hosted in the user's on-premises network-attached storage (NAS) The solutions architect has proposed migrating the MS web servers to Amazon EC2 instances in multiple Availability Zones that are connected to the storage solution, and configuring an Elastic Load Balancer attached to the instances Which replacement to the on-premises file share is MOST resilient and durable?

Question92: A solutions architect is designing a shared storage solution for a web application that is deployed across multiple Availability Zones. The web application runs on Amazon EC2 instances that are in an Auto Scaling group. The company plans to make frequent changes to the content. The solution must have strong consistency in returning the new content as soon as the changes occur.
Which solutions meet these requirements? (Select TWO.)

Question93: A company is planning to deploy a business-critical application in the AWS Cloud. The application requires durable storage with consistent, low-latency performance Which type of storage should a solutions architect recommend to meet these requirements?

Question94: A company is running a media store across multiple Amazon EC2 instances distnbuted across multiple Availability Zones in a single VPC. The company wants a high-performing solution to share data between all the EC2 instances, and prefers to keep the data within the VPC only What should a solutions architect recommend?

Question95: A company is designing a shared storage solution for a gaming application that is hosted in the AWS Cloud The company needs the ability to use SMB clients to access data solution must be fully managed.
Which AWS solution meets these requirements?

Question96: A company's infrastructure consists of hundreds of Amazon EC2 instances that use Amazon Elastic Block Store (Amazon EBS) storage. A solutions architect must ensure that every EC2 instance can be recovered after a disaster What should the solutions architect do to meet this requirement with the LEAST amount of effort?

Question97: A solutions architect is designing a multi-tier application for a company. The application's users upload images from a mobile device. The application generates a thumbnail of each image and returns a message to the user to confirm that the image was uploaded successfully.
The thumbnail generation can take up to 60 seconds, but the company wants to provide a faster response time to its users to notify them that the original image was received. The solutions architect must design the application to asynchronously dispatch requests to the different application tiers.
What should the solutions architect do to meet these requirements?

Question98: A company is running a high performance computing (HPC) workload on AWS across many Linux based Amazon EC2 instances. The company needs a shared storage system that is capable of sub-millisecond latencies, hundreds of Gbps of throughput and millions of IOPS. Users will store millions of small files.
Which solution meets these requirements?

Question99: A company is running a database on Amazon Aurora The database is idle every evening An application that performs extensive reads on the database experiences performance issues during morning hours when user traffic spikes. During these peak penods. the application receives timeout errors when reading from the database The company does not have a dedicated operations team and needs an automated solution to address the performance issues Which actions should a solutions architect take to automatically adjust to the increased read load on the database? (Select TWO )

Question100: A company wants to use a custom distributed application that calculates various profit and loss scenarios To achieve this goal, the company needs to provide a network connection between its Amazon EC2 instances. The connection must minimize latency and must maximize throughput Which solution will meet these requirements?

Question101: A company is seeing access requests by some suspicious IP addresses The security team discovers the requests are from different IP addresses under the same CIDR range What should a solutions architect recommend to the team?

Question102: A company has chosen to rehost its application on Amazon EC2 instances The application occasionally experiences errors that affect parts of its functionality The company was unaware of this issue until users reported the errors The company wants to address this problem during the migration and reduce the time it takes to detect issues with the application Log files for the application are stored on the local disk.
A solutions architect needs to design a solution that will alert staff if there are errors in the application after the application is migrated to AWS. The solution must not require additional changes to the application code.
What is the MOST operationally efficient solution that meets these requirements?

Question103: A company needs a backup strategy for its three-tier stateless web application The web application runs on Amazon EC2 instances in an Auto Scaling group with a dynamic scaling policy that is configured to respond to scaling events The database tier runs on Amazon RDS for PostgreSQL The web application does not require temporary local storage on the EC2 instances The company's recovery point objective (RPO) is 2 hours The backup strategy must maximize scalability and optimize resource utilization for this environment Which solution will meet these requirements?

Question104: A company has primary and secondary data canters that are 500 miles (804.7 km) apart and Interconnected with high-speed fiber.optic cable. The company needs a highly available and secure network connection between its data centers and a VPC on AWS for a mission-critical workload A solutions architect must choose a connection solution that provides maximum resiliency. Which solution meets these requirements?

Question105: A company is building a media sharing application and decides to use Amazon S3 for storage When a media file is uploaded, the company starts a multi-step process to create thumbnails identity objects in the images transcode videos into standard formats and resolutions and extract and store the metadata to an Amazon DynamoDB table The metadata is used for searching and navigation The amount of traffic is variable The solution must be able to scale to handle spikes in load without unnecessary expenses What should a solutions architect recommend to support this workload''

Question106: A company has two VPCs that are located in the us-west-2 Region within the same AWS account. The company needs to allow network traffic between these VPCs. Approximately 500 GB of data transfer will occur between the VPCs each month.
What is the MOST cost-effective solution to connect these VPCs'?'

Question107: A company is concerned about the security of its public web application due to recent web attacks. The application uses an Application Load Balancer (ALB). A solutions architect must reduce the risk of DDoS attacks against the application What should the solutions architect do to meet this requirement?

Question108: A company runs a fleet of web servers using an Amazon RDS for PostgreSQL DB instance After a routine compliance check, the company sets a standard that requires a recovery pant objective (RPO) of less than 1 second for all its production databases.
Which solution meets these requirement?

Question109: A company is deploying an application that processes large quantities of data in parallel The company plans to use Amazon EC2 instances for the workload The network architecture must be configurable to prevent groups of nodes from sharing the same underlying hardware Which networking solution meets these requirements?

Question110: A medical company is designing a new application that gathers symptoms from patients The company has decided to use Amazon Simple Queue Service (Amazon SQS) and Amazon Simple Notification Service (Amazon SNS) in the architecture A solutions architect is reviewing the infrastructure design Data must be encrypted while at rest and in transit Only authorized personnel of the company can access the data Which combination of steps should the solutions architect take to meet these requirements'? (Select TWO )

Question111: A company hosts an application on an AWS Lambda function that runs a number of processing steps The Lambda function typically takes less than 5 minutes to run unless errors occur The company needs to decouple the application code because of past errors that caused the whole process to fail when a processing step took longer than expected The processing steps must be available to be replayed up to 12 months from when the onginal processing occurred How should a solutions architect design the new solution1?

Question112: A solutions architect is designing a two-tier web application The application consists of a public-facing web tier hosted on Amazon EC2 in public subnets The database tier consists of Microsoft SQL Server running on Amazon EC2 in a private subnet Security is a high priority for the company How should security groups be configured in this situation? (Select TWO )

Question113: A company wants to run its critical applications in containers to meet requirements tor scalability and availability The company prefers to focus on maintenance of the critical applications The company does not want to be responsible for provisioning and managing the underlying infrastructure that runs the containerized workload What should a solutions architect do to meet those requirements?

Question114: An ecommerce company is creating an application that requires a connection to a third-party payment service to process payments. The payment service needs to explicitly allow the public IP address of the server that is making the payment request. However, the company's security policies do not allow any server to be exposed directly to the public internet.
Which solution will meet these requirements?

Question115: A company has an Amazon S3 bucket that contains confidential information in its production AWS account The company has turned on AWS CloudTrail for the account. The account sends a copy of its logs to Amazon CloudWatch Logs. The company has configured the S3 bucket to log read and write data events.
A company auditor discovers that some objects in the S3 bucket have been deleted A solutions architect must provide the auditor with information about who deleted the objects What should the solutions architect do to provide this information?

Question116: A company hosts an application on AWS. The application interacts with an Amazon DynamoDB table that has 10 read capacity units (RCUs) Data from Amazon CloudWatch alarms shows that throttling is occurring on read requests to the DynamoDB table. The company needs to prevent this issue from happening in the future as the application continues to grow.
What should a solutions architect recommend to meet these requirements?

Question117: A media company is evaluating the possibility ot moving rts systems to the AWS Cloud The company needs at least 10 TB of storage with the maximum possible I/O performance for video processing. 300 TB of very durable storage for storing media content, and 900 TB of storage to meet requirements for archival media that is not in use anymore Which set of services should a solutions architect recommend to meet these requirements?

Question118: A company runs a public three-Tier web application in a VPC The application runs on Amazon EC2 instances across multiple Availability Zones. The EC2 instances that run in private subnets need to communicate with a license server over the internet The company needs a managed solution that minimizes operational maintenance Which solution meets these requirements''

Question119: An application uses an Amazon RDS MySQL DB instance The RDS database is becoming low on disk space A solutions architect wants to increase the disk space without downtime Which solution meets these requirements with the LEAST amount of effort?

Question120: A company has two AWS accounts: Production and Development. The company needs to push code changes in the Development account to the Production account. In the alpha phase, only two developers on the development team need access to the Production account. In the beta phase, more developers will need access to perform testing.
Which solution will meet these requirements?

Question121: A company uses Amazon API Gateway to manage its REST APIs that third-party service providers access. The company must protect the REST APIs from SQL injection and cross site scripting attacks What is the MOST operationally efficient solution that meets these requirements?

Question122: A company runs an application on several Amazon EC2 instances that store persistent data on an Amazon Elastic File System (Amazon EFS) file system. The company needs to replicate the data to another AWS Region by using an AWS managed service solution Which solution will meet these requirements MOST cost-effectively'?

Question123: A company hosts a popular website in the AWS Cloud, A solutions architect needs to provide reports about user click behaviour in near-real time as users navigate the website.
Which solution will meet this requirement

Question124: A company is running a multi-tier ecommerce web application in the AWS Cloud. The web application is running on Amazon EC2 instances. The database tier is on a provisioned Amazon Aurora MySQL DB cluster with a writer and a reader in a Multi-AZ environment. The new requirement for the database tier is to serve the application to achieve continuous write availability through an instance failover.
What should a solutions architect do to meet this new requirement?

Question125: A solutions architect is designing a solution to access a catalog of images and provide users with the ability to submit requests to customize images Image customization parameters wilt be in every request that is sent to an Amazon API Gateway API. The solution will generate tie customized images on demand. Users will receive a link that they can use to view or download their customized images. The solution must be highly available for viewing and customizing images What should the solutions architect do to meet these requirements MOST cost effectively?

Question126: An airline that is based in the United States provides services for routes in North America and Europe. The airline is developing a new read-intensive application that customers can use to find flights on either continent.
The application requires strong read consistency and needs scalable database capacity to accommodate changes in user demand. The airline needs the database service to synchronize with the least possible latency between the two continents and to provide a simple failover mechanism to a second AWS Region.
Which solution will meet these requirements?

Question127: A company uses Application Load Balancers (ALBs) in different AWS Regions The ALBs receive inconsistent traffic that can spike and drop throughout the year The company's networking team needs to allow the IP addresses of the ALBs in the on-premises firewall to enable connectivity Which solution is the MOST scalable with minimal configuration changes?

Question128: An application running on an Amazon EC2 instance in VPC-A needs to access dies in another EC2 instance in VPC-B Both VPCs are in separate AWS accounts The network administrator needs to design a solution to enable secure access to EC2 instance in VPC-B from VPC-A The connectivity should not have a single point of failure or bandwidth concerns.
Which solution will meet these requirements?

Question129: A company is storing sensitive user information in an Amazon S3 bucket The company wants to provide secure access to this bucket from the application tier running on Ama2on EC2 instances inside a VPC Which combination of steps should a solutions architect take to accomplish this? (Select TWO.)

Question130: A company's legacy application is currently relying on a single-instance Amazon RDS MySQL database without encryption. Due to new compliance requirements all existing and new data in this database must be encrypted.
How should this be accomplished?

Question131: A solutions architect wants all new users to have specific complexity requirements and mandatory rotation periods tor IAM user passwords What should the solutions architect do to accomplish this?

Question132: A company has hired a solutions architect to design a reliable architecture for its application. The application consists of one Amazon RDS DB instance and two manually provisioned Amazon EC2 instances that run web servers. The EC2 instances are located in a single Availability Zone.
What should the solutions architect do to maximize reliability of the application Infrastructure?

Question133: A solution architect is designing he architect of a new application being deployed to the AWS Cloud. The application will run on Amazon EC2 On-Demand instances and will automatically scale across multiple Availability Zones. The EC2 instances will scale up and down frequently the day. An Application load balancer (ALB) will handle the load distribution. The architecture needs to support distributed session data management. The company is willing to make charges to code if needed.
What should the solutions architect do to ensure that the architecture supports distributed session data management?

Question134: A company hosts a three-tier web application that includes a PostgreSQL database The database stores the metadata from documents The company searches the metadata for key terms to retrieve documents that the company reviews in a report each month The documents are stored in Amazon S3 The documents are usually written only once, but they are updated frequency The reporting process takes a few hours with the use of relational queries The reporting process must not affect any document modifications or the addition of new documents.
What are the MOST operationally efficient solutions that meet these requirements? (Select TWO )

Question135: A company that recently started using AWS establishes a Site-to-Site VPN between its on-premises data center and AWS. The company's security mandate states that traffic originating from on premises should stay within the company's private IP space when communicating with an Amazon Elastic Container Service (Amazon ECS) cluster that is hosting a sample web application.
Which solution meets this requirement?

Question136: A company plant to host a survey website on AWS The company anticipates an unpredictable amount of traffic This traffic results m asynchronous updates to the database. The company wants to ensure mat writes to the database hosted on AWS do not gel dropped How should the company write its application to hand to these database requests?

Question137: A company hosts its application in the AWS Cloud. The application runs on Amazon EC2 instances behind an Elastic Load Balancer in an Auto Scaling group and with an Amazon DynamoDB table. The company wants to ensure the application can be made available in another AWS Region with minimal downtime.
What should a solutions architect do to meet these requirements with the LEAST amount of downtime?

Question138: A solutions architect needs to design a resilient solution for Windows users' home directories. The solution must provide fault tolerance, file-level backup and recovery, and access control, based upon the company's Active Directory.
Which storage solution meets these requirements?

Question139: A company wants an AWS Lambda function to call a third-party API and save the response to a private Amazon ROS DB instance in the same private subnet What should a solutions architect do to meet these requirements?

Question140: A solutions architect needs to design a system to store client case files. The tiles are core company assets and are important. The number of tiles will grow over time. The files must be simultaneously accessible from multiple application servers that run on Amazon EC2 instances. The solution must have built-in redundancy. Which solution meets these requirements?

Question141: A company is developing a video conversion application hosted on AWS The application will be available in two tiers: a free tier and a paid tier. Users in the paid tier will have their videos converted first and then the free tier users will have their videos converted Which solution meets these requirements and is MOST cost-effective?

Question142: A user wants to list the IAM role that Is attached to their Amazon EC2 Instance. The user has login access to the EC2 instance but does not have IAM permissions What should a solutions architect do to retrieve this information?
A)

B)

C)

D)

Question143: A solution architect is creating a new Amazon CloudFront distribution for an application Some of Ine information submitted by users is sensitive. The application uses HTTPS but needs another layer" of security The sensitive information should be protected throughout the entire application stack end access to the information should be restricted to certain applications Which action should the solutions architect take?

Question144: A company is developing a file-sharing application that will use an Amazon S3 bucket for storage The company wants to serve all the files through an Amazon CloudFront distribution. The company does not want the files to be accessible through direct navigation to the S3 URL What should a solutions architect do to meet these requirements?

Question145: A company is designing a cloud communications platform trial is driven by APIs. The application is hosted on Amazon EC2 instances behind a Network Load Balancer (NLB). The company uses Amazon API Gateway to provide external users with access to the application through APIs. The company wants to protect the platform against web exploits like SQL Injection and also wants to detect and mitigate large, sophisticated DDoS attacks Which combination of solutions provides the MOST protection? (Select TWO.)

Question146: A company is developing a real-time multiplayer game that uses UDP for communications between the client and servers In an Auto Scaling group Spikes in demand are anticipated during the day, so the game server platform must adapt accordingly Developers want to store gamer scores and other non-relational data in a database solution that will scale without intervention Which solution should a solutions architect recommend?

Question147: A company has a service that reads and writes large amounts of data from an Amazon S3 bucket in the same AWS Region The service is deployed on Amazon EC2 instances within the private subnet of a VPC. The service communicates with Amazon S3 over a NAT gateway in the public subnet However, the company wants a solution that will reduce the data output costs.
Which solution will meet these requirements MOST cost-effectively?

Question148: A company is running a multi-tier web application on premises. The web application is containerized and runs on a number of Linux hosts connected to a PostgreSQL database that contains user records The operational overhead of maintaining the infrastructure and capacity planning is limiting the company's growth A solutions architect must improve the application's infrastructure.
Which combination of actions should the solutions architect take to accomplish this? (Select TWO.)

Question149: A company has implemented a self-managed DNS solution on three Amazon EC2 instances behind a Network Load Balancer (NLB) in the us-west-2 Region Most of the company's users are located in the United States and Europe The company wants to improve the performance and availability of the solution by using an AWS Region in Europe The company launches and configures three EC2 instances in the eu-west-1 Region and adds the EC2 instances as targets for a new NLB Which solutions will allow traffic to be routed to all the EC2 instances? (Select TWO )

Question150: A company wants to run a hybrid workload for data processing. The data needs to be accessed by on-premises applications for local data processing using an NFS protocol and must also be accessible from the AWS Cloud for further analytics and batch processing Which solution will meet these requirements?

Question151: A company develops web applications. As part of its development process, the company constantly launches and deletes Application Load Balancers (ALBs) in multiple AWS Regions.
The company wants to create an allow list on its firewall device. The allow list will contain the IP addresses of an the load balancers. A solutions architect needs a one-line, highly available solution that will accomplish that goal and will help reduce the number of IP addresses that the firewall needs to allow.
Which solution will meet these requirements with the LEAST amount of operational overhead?

Question152: A security learn needs to enforce the rotation of all IAM users' access keys every 90 days If an access key Is found to be older, the key must be made inactive and removed A solutions architect must create a solution that will check for and remediate any keys older than 90 days Which solution meets these requirements with the LEAST operational effort?

Question153: A company is designing an application to run in a VPC on AWS The application consists of Amazon EC2 instances that tun in private subnets as part of an Auto Scaling group The application also includes a Network Load Balancer that extends across public subnets The application stores data in an Amazon RDS OB instance The company has attached a security group that is named "web-servers' to the EC2 instances. The company has attached a security group that is named "database" to the DB Instance.
How should a solutions architect configure the communication between the EC2 instances and the DB instance?

Question154: A company is using Amazon Route 53 latency-based routing to route requests to its UDP-based application for users around the world. The application is hosted on redundant servers in the company's on-premises data centers in the United States. Asia, and Europe. The company's compliance requirements state that the application must be hosted on premises The company wants to improve the performance and availability of the application What should a solutions architect do to meet these requirements?

Question155: A company wants to implement a disaster recovery plan for its primary on-premises file storage volume. The file storage volume is mounted from an Internet Small Computer Systems Interface (iSCSI) device on a local storage server. The file storage volume holds hundreds of terabytes (TB) of data.
The company wants to ensure that end users retain immediate access to all file types from the on-premises systems without experiencing latency.
Which solution will meet these requirements with the LEAST amount of change to the company's existing infrastructure?

Question156: A company is using Amazon CloudFront with lis website. The company has enabled logging on the CloudFront distribution, and togs are saved in one of the company's Amazon S3 buckets The company needs to perform advanced analyses on the logs and build visualizations What should a solutions architect do to meet these requirements'?

Question157: A company has an on-premises MySQL database used by the global tales team with infrequent access patterns. The sales team requires the database to have minimal downtime. A database administrate wants to migrate this database to AWS without selecting a particular instance type in anticipation of more users In the future.
Which service should a solutions architect recommend?

Question158: A company has an application that collects data from loT sensors on automobiles. The data is streamed and stored in Amazon S3 through Amazon Kinesis Date Firehose The data produces trillions of S3 objects each year. Each morning, the company uses the data from the previous 30 days to retrain a suite of machine learning (ML) models.
Four times each year, the company uses the data from the previous 12 months to perform analysis and train other ML models The data must be available with minimal delay for up to 1 year. After 1 year, the data must be retained for archival purposes.
Which storage solution meets these requirements MOST cost-effectively?

Question159: A computer is reviewing a recent migration of a three-tier application to a VPC. The security team discover that the principle of lest privilege is not being applied to Amazon EC2 security group ingress and egress rules between the application tiers.
What should a solution architect do to connect issue?

Question160: A company wants to run applications in container in the AWS Cloud. Those applications arc stateless and can tolerate disruptions. What should a solutions architect do to meet those requirements?
What should a solution architect do to meet these requirements?

Question161: A company runs an application on an Amazon EC2 instance. The application frequently writes and reads tens of thousands of intermediate computation results to disk To finish within the allowed duration, the application must be able to complete all intermediate computations with sustained low latency.
Which Amazon Elastic Block Store (Amazon EBS) volume type should a solutions architect attach to the EC2 instance to meet these requirements?

Question162: A company has a custom application running on an Amazon EC2 instance that
* Reads a large amount of data from Amazon S3
* Performs a multi-stage analysis.
Writes the results to Amazon DynamoDB
The application writes a significant number of large, temporary files during the multi-stage analysis. The process performance depends on the temporary storage performance. What would be the fastest storage option for holding the temporary files?

Question163: A company is hosting an application in its own data center The application uses Amazon S3 for data storage The application transfers several hundred terabytes of data every month to and from Amazon S3 The company needs to minimize the cost of this data transfer Which solution meets this requirement?

Question164: A company's website provides users with downloadable historical performance reports. The website needs a solution that will scale to meet the company's website demands globally. The solution should be cost-effective, limit the provisioning of infrastructure resources, and provide the fastest possible response time.
Which combination should a solutions architect recommend to meet these requirements?

Question165: A company has a Windows-based application that must be migrated to AWS. The application requires the use of a shared Windows Me system attached to multiple Amazon EC2 Windows instances that are deployed across multiple Availability Zones What should a solutions architect do to meet this requirement?

Question166: A company recently released a new type of internet-connected sensor. The company is expecting to sell thousands of sensors, which are designed to stream high volumes of data each second to a central location. A solutions architect must design a solution that ingests and stores data so that engineering teams can analyse it in near-real time with millisecond responsiveness.
Which solution should the solution architect recommend?

Question167: A company wants to improve the availability and performance of its hybrid application. The application consists of a stateful TCP-based workload hosted on Amazon EC2 instances in different AWS Regions and a stateless UDP-based workload hosted on premises.
Which combination of actions should a solutions architect take to improve availability and performance? (Select TWO.)

Question168: A pharmaceutical company is developing a new drug. The volume of data that the company generates has grown exponentially over the past few months. The company's researchers regularly require a subset of the entire dataset to be immediately available with minimal lag. However, the entire dataset does not need to be accessed on a daily basis. All the data currently resides in on-premises storage arrays, and the company wants to reduce ongoing capital expenses.
Which storage solution should a solutions architect recommend to meet these requirements?

Question169: An online retail company needs to run near-real-time analytics on website traffic to analyze top-selling products across different locations. The product purchase data and the user location details are sent to a third-party application that runs on premises The application processes the data and moves the data into the company's analytics engine The company needs to implement a cloud-based solution to make the data available for near-real-time analytics.
Which solution will meet these requirements with the LEAST operational overhead?

Question170: A company captures ordered clickstream data from multiple websites and uses batch processing to analyze the dat a. The company receives 100 million event records, all approximately 1 KB in size, each day. The company loads the data into Amazon Redshift each night, and business analysts consume the data.
The company wants to move toward near-real-time data processing for timely insights. The solution should process the streaming data while requiring the least possible operational overhead.
Which combination of AWS services will meet these requirements MOST cost-effectively? (Select TWO.)

Question171: A solutions architect is designing a security solution for a company that wants to provide developers with individual AWS accounts through AWS Organizations, while also maintaining standard security controls Because the individual developers will have AWS account root user-level access to their own accounts, the solutions architect wants to ensure that the mandatory AWS CloudTrail configuration that is applied to new developer accounts is not modified.
Which action meets these requirements?

Question172: A company wants to build a scalable key management Infrastructure to support developers who need to encrypt data in their applications.
What should a solutions architect do to reduce the operational burden?

Question173: A company is hosting a three-tier ecommerce application in the AWS Cloud. The company hosts the website on Amazon S3 and integrates the website with an API that handles sales requests. The company hosts the API on three Amazon EC2 instances behind an Application Load Balancer (ALB). The API consists of static and dynamic front-end content along with backend workers that process sales requests asynchronously.
The company is expecting a significant and sudden increase in the number of sales requests during events for the launch of new products What should a solutions architect recommend to ensure that all the requests are processed successfully?

Question174: A company has an automobile sales website that stores its listings in a database on Amazon RDS When an automobile is sold the listing needs to be removed from the website and the data must be sent to multiple target systems.
Which design should a solutions architect recommend?

Question175: A company hosts a training site on a fleet of Amazon EC2 instances. The company anticipates that its new course which consists of dozens of training videos on the site, will be extremely popular when it is released in 1 week What should a solutions architect do to minimize the anticipated server load?

Question176: A company stores 200 GB of data each month in Amazon S3. The company needs to perform analytics on this data at the end of each month to determine the number of items sold m each sates region for the previous month Which analytics strategy is MOST cost-effective for the company to use?

Question177: A company processes large amounts of dat
a. The output data is stored in Amazon S3 Standard storage in an S3 bucket, where it is analyzed for 1 month. The data must remain immediately accessible after the 1-month analysis period.
Which storage solution meets these requirements MOST cost-effectively?

Question178: A company uses Amazon S3 as its object storage solution The company has thousands of S3 buckets it uses to store data Some of the S3 buckets have data that is accessed less frequently than others. A solutions architect found that lifecycle policies are not consistently implemented or are implemented partially: resulting in data being stored in high-cost storage Which solution will lower costs without compromising the availability of objects?

Question179: A company uses GPS trackers to document the migration patterns of thousands of sea turtles The trackers check every 5 minutes to see if a turtle has moved more than 100 yards (91 4 meters) If a turtle has moved its tracker sends the new coordinates to a web application running on three Amazon EC2 instances that are in multiple Availability Zones in one AWS Region Recently, the web application was overwhelmed while processing an unexpected volume of tracker data Data was lost with no way to replay the events A solutions architect must prevent this problem from happening again and needs a solution with the least operationa overhead What should the solutions architect do to meet these requirements''

Question180: A solutions architect must provide an automated solution for a company's compliance policy that states security groups cannot include a rule that allows SSH from 0 0 0 0/0 The company needs to be notified if there is any breach in the policy A solution is needed as soon as possible What should the solutions architect do to meet these requirements with the LEAST operational overhead?

Question181: A company offers a food delivery service that is growing rapidly Because of the growth the company's order processing system is experiencing scaling problems during peak traffic hours. The current architecture includes the following;
* A group of Amazon EC2 instances that run in an Amazon EC2 Auto Scaling group to collect orders from the application
* Another group of EC2 instances that run in an Amazon EC2 Auto Scaling group to fulfill orders The order collection process occurs quickly, but the order fulfillment process can take longer Data must not be lost because of a scaling event A solutions architect must ensure that the order collection process and the order fulfillment process can both scale properly during peak traffic hours The solution must optimize utilization of the company's AWS resources Which solution meets these requirements'?

Question182: A company uses 50 TB of data for reporting. The company wants to move this data from on premises to AWS A custom application in the company's data center runs a weekly data transformation job. The company plans to pause the application until the data transfer is complete and needs to begin the transfer process as soon as possible.
The data center does not have any available network bandwidth for additional workloads A solutions architect must transfer the data and must configure the transformation job to continue to run in the AWS Cloud Which solution will meet these requirements with the LEAST operational overhead?

Question183: A company has deployed a business-critical application in the AWS Good The application uses Amazon EC2 instances that run in the us-east-1 Region The application uses Amazon S3 for storage of all critical data To meet compliance requirements the company must create a disaster recovery (DR) plan that provides the capability of a full failover to another AWS Region What should a solutions architect recommend for this DR plan?

Question184: A company's security team requests that network traffic be captured in VPC Flow Logs The logs will be frequently accessed for 90 days and then accessed intermittently What should a solutions architect do to meet these requirements when configuring the logs?

Question185: A company recently launched its website to servo content to its global user base. The company wants to store and accelerate the delivery of static content to its users by leveraging Amazon CloudFront with an Amazon EC2 instance attached as its origin How should a solutions architect optimize high availability tor the application?

Question186: A company hosts a multi-tier web application on Amazon Linux Amazon EC2 instances behind an Application Load Balancer The instances run in an Auto Scaling group across multiple Availability Zones The company observes that the Auto Scaling group launches more On-Demand Instances when the application's end users access high volumes of static web content The company wants to optimize cost What should a solutions architect do to redesign the application MOST cost-effectively?

Question187: A company wants to design its cloud architecture so that its workloads are resilient, can consistently perform their intended functions correctly, and can recover from failure quickly Which pillar of the AWS Well-Architected Framework does this architecture represent?

Question188: A company is migrating a Linux-based web server group to AWS. The web servers must access files in a shared file store for some content. The company must not make any changes to the application.
What should a solutions architect do to meet these requirements?

Question189: A solutions architect is designing the architecture for a new web application. The application will run on AWS Fargate containers with an Application Load Balancer (ALB) and an Amazon Aurora PostgreSQL database. The web application will perform primarily read queries against the database.
What should the solutions architect do to ensure that the website can scale with increasing traffic? (Select TWO.)

Question190: A company has thousands of edge devices that collectively generate 1 TB of status averts each day Each alert s approximately 2 KB in size. A solutions architect needs to implement a solution to ingest and store the alerts for future analysis The company wants a highly available solution However the company needs to minimize costs and does not want to manage additional infrastructure Additionally, the company wants to keep 14 days of data available for immediate analysis and archive any data older than 14 days What is the MOST operationally efficient solution that meets these requirements^

Question191: A company runs multiple Amazon EC2 Linux instances in a VPC across two Availability Zones The instances host applications that use a hierarchical directory structure The applications need to read and write rapidly and concurrently to shared storage What should a solutions architect do to meet these requirements?

Question192: A company is using AWS Key Management Service (AWS KMS) customer master keys (CMKs) to encrypt AWS Lambda environment variables A solutions architect needs to ensure that the required permissions are in place to decrypt and use the environment variables.
Which steps must the solutions architect take to implement the correct permissions? (Select TWO.)

Question193: A solutions architect must create a highly available bastion host architecture. The solution needs to be resilient within a single AWS Region and should require only minimal effort to maintain.
What should the solutions architect do to meet these requirements?

Question194: A startup company is using me AWS Cloud to develop a traffic control monitoring system for a large city The system must be highly available and must provide near-real-time results for residents and city officials even during peak events Gigabytes of data will come in daily from loT devices that run at intersections and freeway ramps across the city The system must process the data sequentially to provide the correct timeline However results need to show only what has happened in the last 24 hours.
Which solution will meet these requirements MOST cost-effectively?

Question195: A company wants to monitor its AWS costs for financial review. The cloud operations team is designing an architecture in the AWS Organizations management account to query AWS Cost and Usage Reports for all member accounts. The team must run this query once a month and provide a detailed analysis of the bill.
Which solution is the MOST scalable and cost-effective way to meet these requirements?

Question196: A company that operates a web application on premises is preparing to launch a newer version of the application on AWS The company needs to route requests to either the AWS-hosted or the on-premises-hosted application based on the URL query string The on-premises application Is not available from the Internet, and a VPN connection Is established between Amazon VPC and the company's data center. The company wants to use an Application Load Balancer (ALB) for this launch Which solution meets these requirements''

Question197: A meteorological startup company has a custom web application to sell weather data to its users online. The company uses Amazon DynamoDB to store is data and wants to bu4d a new service that sends an alert to the managers of four Internal teams every time a new weather event is recorded. The company does not want true new service to affect the performance of the current application What should a solutions architect do to meet these requirement with the LEAST amount of operational overhead?

Question198: A company maintains a searchable repository of items on its website. The data is stored in an Amazon RDS for MySQL database table that contains more than 10 million rows The database has 2 TB of General Purpose SSD storage There are millions of updates against this data every day through the company's website The company has noticed that some insert operations are taking 10 seconds or longer The company has determined that the database storage performance is the problem Which solution addresses this performance issue?

Question199: A solutions architect is designing a high performance computing (HPC) workload on Amazon EC2 The EC2 instances need to communicate to each other frequently and require network performance with low latency and high throughput Which EC2 configuration meets these requirements?

Question200: A company has applications that are deployed in multiple AWS Regions. The applications use an architecture that is based on Amazon EC2, Amazon Elastic Block Store (Amazon EBS), Amazon Elastic File System (Amazon EFS). and Amazon DynamoDB The company lacks a mechanism for centralized data backup. A solutions architect must centralize data backup with the least possible operational effort.
What should the solutions architect do to meet these requirements?

Question201: A company is planning to store data on Amazon RDS DB instances. The company must encrypt the data at rest.
What should a solutions architect do to meet this requirement?

Question202: A solution architect is designing a new service behind API Gateway. The request pattern for the service will be unpredictable and can change suddenly from 0 request to over 500 per second. The total size of the data that needs to be persisted database is currently less than 1 GB unpredictable future growth. Date can be queried using sampling key -value request.
Which combination of AWS services would meet these requirements? (Select TWO.)

Question203: A company runs an online ticketing application with backend services that run on Amazon EC2 instances. The EC2 instances belong to an Auto Scaling group and run behind an Application Load Balancer. The application experiences periods of high user traffic when a popular event is posted online. The company wants a solution that will be able to handle increases in user traffic without affecting the user experience.
What should a solutions architect do to meet these requirements?

Question204: A company provides an API to its users trial automates inquires for tax computations based on item prices. The company experiences a larger number of inquiries during the holiday season only that cause slower response times. A solutions architect needs to design a solution that is scalable and elastic.
What should the solution architect do lo accompli this?

Question205: A company has a data ingestion workflow that consists the following:
An Amazon Simple Notification Service (Amazon SNS) topic for notifications about new data deliveries An AWS Lambda function to process the data and record metadata The company observes that the ingestion workflow fails occasionally because of network connectivity issues. When such a failure occurs, the Lambda function does not ingest the corresponding data unless the company manually reruns the job.
Which combination of actions should a solutions architect take to ensure that the Lambda function ingests all data in the future? (Select TWO.)

Question206: A company is launching a new application that will be hosted on Amazon EC2 instances. A solutions architect needs to design a solution that does not allow public IPv4 access that originates from the internet. However, the solution must allow the EC2 instances to make outbound IPv4 internet requests.
The initial design proposal shows that the EC2 instances would be located in two private subnets across two Availability Zones. The entire architecture must be highly available.
How should the solutions architect change the architecture to meet these requirements?

Question207: A company's order fulfillment service uses a MySQL database The database needs to support a large number of concurrent queries and transactions Developers are spending time patching and tuning the database This is causing delays in releasing new product features The company wants to use cloud-based services to help address this new challenge The solution must allow the developers to migrate the database with little or no code changes and must optimize performance Which service should a solutions architect use to meet these requirements'?

Question208: An application allows users at a company's headquarters to access product dat a. The product data is stored in an Amazon RDS MySQL DB instance The operations team has isolated an application performance slowdown and wants to separate read traffic from write traffic A solutions architect needs to optimize the application's performance quickly.
What should the solutions architect recommend?

Question209: A company recently started using Amazon Aurora as the data store for its global ecommerce application When large reports are run developers report that the ecommerce application is performing poorly After reviewing metrics in Amazon CloudWatch, a solutions architect finds that the ReadlOPS and CPUUtilization metrics are spiking when monthly reports run.
What is the MOST cost-effective solution?

Question210: A company is implementing a shared storage solution for a media application that is hosted m the AWS Cloud The company needs the ability to use SMB clients to access data The solution must he fully managed.
Which AWS solution meets these requirements?

Question211: Which AWS service can a company use to store and manage Docker images?

Question212: A company has a website hosted on AWS The website is behind an Application Load Balancer (ALB) that is configured to handle HTTP and HTTPS separately. The company wants to forward all requests to the website so that the requests will use HTTPS.
What should a solutions architect do to meet this requirement?

Question213: An entertainment company is using Amazon DynamoDB to store media metadat a. The application Is read intensive and experience delays The company does not have staff to handle additional operational overhead and needs to Improve the performance efficiency of DynamoDB without reconfiguring the application What should a solutions architect recommend to meet this requirement?

Question214: A company collects 10 GB of telemetry data dairy from various machines. The company stores the data in an Amazon S3 bucket in a source data account.
The company has hired several consuming agencies to use this data for analysis. Each agency needs read access to the data for its analysis. The company must share the data from tie source data account by choosing a solution that maximizes security and operational efficiency. Which solution will meet these requirements?

Question215: A company uses an Amazon S3 bucket as its data lake storage platform. The S3 bucket contains a massive amount of data that is accessed randomly by multiple teams and hundreds of applications The company wants to reduce me S3 storage costs and provide immediate availability for frequently accessed objects What is the MOST operationally efficient solution that meets these requirements?

Question216: A company has a web application hosted over 10 Amazon EC2 instances with traffic directed by Amazon Route 53 The company occasionally experiences a timeout error when attempting to browse the application The networking team finds that some DNS queries return IP addresses of unhealthy instances resulting in the timeout error What should a solutions architect implement to overcome these timeout errors?

Question217: A doctor's office is moving all of its patient data to the AWS Cloud The office needs to retain all the data indefinitely, but the data is rarely accessed after a year. The data must be immediately available during the first year However, to minimize cost, the office is willing to wait a day for data that is more than 1 year old to become available.
Which combination of actions should a solutions architect take to meet these requirements MOST cost-effectively? (Select TWO )

Question218: An application runs on Amazon EC2 instances in private subnets. The application needs to access an Amazon DynamoDB table. What is me MOST secure way to access the table while ensuring that the traffic does not leave the AWS network?

Question219: A company is planning to migrate a legacy application to AWS. The application currently uses NFS to communicate to an on-premises storage solution to store application dat a. The application cannot be modified to use any other communication protocols other than NFS for this purpose Which storage solution should a solutions architect recommend for use after the migration?

Question220: A company needs to migrate a legacy application from an on-premises data center to the AWS Cloud because of hardware capacity constraints. The application runs 24 hours a day. & days a week,. The application database storage continues to grow over time.
What should a solution architect do to meet these requirements MOST cost-affectivity?

Question221: A company serves content to its subscribers across the world using an application running on AWS The application has several Amazon EC2 instances in a private subnet behind an Application Load Balancer (ALB) Due to a recent change in copyright restrictions, the chief information officer (CiO) wants to block access for certain countries.
Which action will meet these requirements?

Question222: A company has a business-critical application that runs on Amazon bC2 instances. The application stores data m an Amazon DynamoDB table. The company must be able to revert the table to any point within the last 24 hours. Which solution meets these requirements with the LEAST operational overhead?

Question223: A company runs a web-based portal that provides users with global breaking news local alerts, and weather updates The portal delivers each user a personalized view by using a mixture of static and dynamic content Content is served over HTTPS through an API server running on an Amazon EC2 instance behind an Application Load Balancer (ALB) The company wants the portal to provide this content to its users across the world as quickly as possible How should a solutions architect design the application to ensure the LEAST amount of latency for all users?

Question224: A company is creating a three-tier web application consisting of a web server an application server and a database server. The application will track GPS coordinates of packages as they are being delivered The application will update the database every 0 5 seconds The tracking will need to be read as fast as possible for users to check the status of their packages Only a few packages might be tracked on some days whereas millions of packages might be tracked on other days Tracking will need to be searchable by tracking ID customer ID and order ID Orders older than 1 month no longer need to be tracked.
What should a solutions architect recommend to accomplish this with minimal total cost of ownership?

Question225: A company is running a three-tier web application to process credit card payments The front-end user interface consists of static webpages The application tier can have long-runmng processes The database tier uses MySQL The application is currently running on a single general purpose large Amazon EC2 instance A solutions architect needs to decouple the services to make the web application highly available Which solution would provide the HIGHEST availability

Question226: A company has a hybrid application hosted on multiple on-premises servers with static IP addresses There is already a VPN that provides connectivity between the VPC and the on-premises network. The company wants to distribute TCP traffic across the on-premises servers for internet users What should a solutions architect recommend to provide a highly available and scalable solution?

Question227: A company has an application workflow that uses an AWS Lambda function to download and decrypt files from Amazon S3 These files are encrypted using AWS Key Management Service Customer Master Keys (AWS KMS CMKs). A solutions architect needs to design a solution that will ensure the required permissions are set correctly.
Which combination of actions accomplish this? (Select TWO.)

Question228: A company needs to build a reporting solution on AWS. The solution must support SQL queries that data analysts run on the dat a. The data analysts will run lower than 10 total queries each day. The company generates 3 GB of new data daily in an on-premises relational database. This data needs to be transferred to AWS to perform reporting tasks.
What should a solutions architect recommend to meet these requirements at the LOWEST cost?

Question229: An application hosted on AWS is experiencing performance problems, and the application vendor wants to perform an analysis of the log file to troubleshoot further. The log file is stored on Amazon S3 and is 10GB in size. The application owner will make the log file available to the vendor for a limited time.
Whit it the MOST secure way to do this?

Question230: A company runs an on-premises application that is powered by a MySQL database The company is migrating the application to AWS to Increase the application's elasticity and availability The current architecture shows heavy read activity on the database during times of normal operation Every 4 hours the company's development team pulls a full export of the production database to populate a database in the staging environment During this period, users experience unacceptable application latency The development team is unable to use the staging environment until the procedure completes A solutions architect must recommend replacement architecture that alleviates the application latency issue The replacement architecture also must give the development team the ability to continue using the staging environment without delay Which solution meets these requirements?

Question231: A company has a web application for travel ticketing. The application is based on a database that runs in a single data center in North Americ a. The company wants to expand the application to serve a global user base The company needs to deploy the application to multiple AWS Regions Average latency must be less than 1 second on updates to the reservation database The company wants to have separate deployments of its web platform across multiple Regions. However, the company must maintain a single primary reservation database that is globally consistent Which solution should a solutions architect recommend to meet these requirements''

Question232: A company used an AWS Direct Connect connection to copy 1 PB of data from a colocation facility to an Amazon S3 bucket in the us-east-1 Region. The company now wants to copy the data to another S3 bucket in the us-weet-2 Region.
Which solution will meet this requirement?

Question233: An ecommerce company is building a distributed application that involves several serverless functions and AWS services to complete order-processing tasks. These tasks require manual approvals as part of the workflow A solutions architect needs to design an architecture for the order-processing application The solution must be able to combine multiple AWS Lambda functions into responsive serverless applications The solution also must orchestrate data and services that run on Amazon EC2 instances, containers, or on-premises servers Which solution will meet these requirements with the LEAST operational overhead?

Question234: A company is implementing a new business application The application runs on two Amazon EC2 instances and uses an Amazon S3 bucket for document storage A solutions architect needs to ensure that the EC? instances can access the S3 bucket What should the solutions architect do to moot this requirement?

Question235: A company recently migrated a legacy application from an on-premises data center to AWS The application is running on an Amazon EC2 instance The EC2 instance is deployed in a private subnet in a VPC without inbound internet access The application support team requires SSH access to the operating system to perform periodic maintenance Which solution provides secure access with the LEAST operational effort?

Question236: A company's web application consists of multiple Amazon EC2 instances that run behind an Application Load Balancer in a VPC. An Amazon ROS for MySQL DB instance contains the dat The company needs the ability to automatically detect and respond to suspicious or unexpected behaviour in its AWS environment the company already has added AWS WAF to its architecture.
What should a solutions architect do next lo protect against threats?

Question237: A solutions architect at an ecommerce company wants to back up application log data to Amazon S3. The solutions architect is unsure how frequently the logs will be accessed of which logs will be accessed the most. The company wants to keep costs as low as possible by using the appropriate S3 storage class Which S3 storage class should be implemented to meet these requirements?

Question238: A company is developing a mobile game that streams score updates to a backend processor and then posts results on a leaderboard A solutions architect needs to design a solution that can handle large traffic spikes process the mobile game updates in order of receipt and store the processed updates in a highly available database The company also wants to minimize the management overhead required to maintain the solution What should the solutions architect do to meet these requirements?

Question239: A company wants its public web application to run on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB). The application must use a publicly trusted SSL certificate.
Which solution will meet these requirements MOST cost-effectively?

Question240: A company has hundreds of Amazon EC2 Linux-based instances in the AWS Cloud. Systems administrators have used shared SSH keys to manage the instances After a recent audit, the company's security team is mandating the removal of all shared keys. A solutions architect must design a solution that provides secure access to the EC2 instances.
Which solution will meet this requirement with the LEAST amount of administrative overhead?

Question241: A company hosts more than 300 global websites and applications. The company requires a platform to analyze more than 30 TB of clickstream data each day.
What should a solutions architect do to transmit and process the clickstream data?

Question242: A solutions architect is creating an application. The application will run on Amazon EC2 instances in private subnets across multiple Availability Zones in a VPC. The EC2 instances will frequently access large files that contain confidential information. These files are stored in Amazon S3 buckets for processing. The solutions architect must optimize the network architecture to minimize data transfer costs.
What should the solutions architect do to meet these requirements?

Question243: A company has NFS servers in an on-premises data center that need to periodically back up small amounts of data to Amazon S3.
Which solution marts these requirement and is MOST cost-effective?

Question244: A company hosts its static website content from an Amazon S3 bucket in the us-east-1 Region Content is made available through an Amazon CloudFront origin pointing to that bucket Cross-Region replication is set up to create a second copy of the bucket in the ap-southeast-1 Region Management wants a solution that provides greater availability for the website Which combination of actions should a solutions architect take to increase availability'? (Select TWO.

Question245: A company has a Microsoft NET application that runs on an on-premises Windows Server. The application stores data by using an Oracle Database Standard Edition server. The company is planning a migration to AWS and wants to minimize development changes while moving the application. The AWS application environment should be highly available.
Which combination of actions should the company take to meet these requirements? (Select TWO.)

Question246: A solution architect is designing an application for a two-step order across. The first step is synhronous and must return to the user with little latency. The second step takes longer so it will be implemented in a separate component. Orders must be processed exacity once and in the order in which they are received.
How should the solutions architect integrate these components?

Question247: A company has several web servers that need to frequently access a common Amazon RDS MySQL Multi-AZ DB instance The company wants a secure method for the web servers to connect to the database while meeting a security requirement to rotate user credentials frequently.
Which solution meets these requirements?

Question248: A company is running a two-tier ecommerce website using AWS services The current architecture uses a public-facing Elastic Load Balancer that sends traffic to Amazon EC2 instances in a prrvate subnet. The static content is hosted on EC2 instances and the dynamic content is retneved from a MySQL database The application is running in the United States The company recently started selling to users in Europe and Australi a. A solutions architect needs to design a solution so their international users have an improved browsing experience Which solution is MOST cost-effective?