EMT Practice Test

1. Question Content...

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Question1: A cloud practitioner needs an Amazon EC2 instance to launch and run for 7 hours without interruptions.
What is the most suitable and cost-effective option for this task?

Question2: A user needs to demonstrate which AWS services are compliant with the Payment Card Industry Data Security Standard (PCI DSS).
Which AWS resource can be used to meet this requirement?

Question3: Which AWS service enables users to security connect to AWS resources over the public internet?

Question4: Under the shared responsibility model, which of the following is a shared control between a customer and AWS?

Question5: Which AWS services can be used as infrastructure automation tools? (Select TWO.)

Question6: Which AWS service enables risk auditing of an AWS account by tracking and recording user actions and source IP addresses?

Question7: A company wants to allow full access to an Amazon S3 bucket for a particular user Which element in the S3 bucket policy holds the user details that describe who needs access to the S3 bucket?

Question8: Which of the following AWS services provide compute resources? (Choose two.)

Question9: If a customer needs to audit the change management of AWS resources, which of the following AWS services should the customer use?

Question10: If each department within a company has its own AWS account, what is one way to enable consolidated billing?

Question11: A company needs to perform data processing once a week that typically lakes about 5 hours to complete. Which AWS service should the company use for this workload?

Question12: Which of the following is an AWS database service?

Question13: What are the immediate benefits of using the AWS Cloud? (Select TWO.)

Question14: A user is planning to migrate an application workload to the AWS Cloud Which control becomes the responsibility of AWS once the migration is complete?

Question15: A company is looking for a scalable data warehouse solution.
Which of the following AWS solutions would meet the company's needs?

Question16: Under the shared responsibility model, which of the following tasks are the responsibility of the AWS customer? (Select TWO.)

Question17: What is the MOST effective resource for staying up to date on AWS security announcements?

Question18: A solution that is able to support growth in users, traffic, or data size with no drop in performance aligns with which cloud architecture principle?

Question19: Which AWS services provide a user with connectivity between the AWS Cloud and onpremises resources? (Select TWO)

Question20: A company's web application currently has light dependencies on underlying components so when one component fails the entire web application fails Applying which AWS Cloud design principle will address the current design issue?

Question21: Which method helps to optimize costs for users moving to the AWS Cloud?

Question22: Which of the following are AWS best practices? (Select TWO.)

Question23: Which AWS service automatically handles application health monitoring?

Question24: According to security best practices, how should an Amazon EC2 instance be given access to an Amazon S3 bucket?

Question25: A company is considering moving its on-premises data center to AWS.
What factors should be included in doing a Total Cost of Ownership (TCO) analysis? (Choose two.)

Question26: Which design principles of the AWS Well-Architected Framework help increase reliability? (Select TWO.)

Question27: According to the AWS shared responsibility model, what is AWS responsible for?

Question28: Which AWS service provides on demand downloads of AWS security and compliance documentation?

Question29: AnyCompany recently purchased Example Corp Both companies use AWS resources, and AnyCompany wants a single aggregated bill Which option allows AnyCompany to receive a single bill?

Question30: A company is considering migrating its applications to AWS. The company wants to compare the cost of running the workload on-premises to running the equivalent workload on the AWS platform.
Which tool can be used to perform this comparison?

Question31: What does it mean if a user deploys a hybrid cloud architecture on AWS?

Question32: AWS trusted advisor provides recommendations on which of the following?

Question33: Which AWS service controls permissions to the AWS management console?

Question34: Which of the following services provides on-demand access to AWS compliance reports?

Question35: Which AWS service is designed to help users who want to use machine learning for natural language processing (NLP) but do not have experience in machine learning?

Question36: A user is planning to launch two additional Amazon EC2 instances to increase availability. Which action should the user take?

Question37: What is the best resource for a user to find compliance-related information and reports about AWS?

Question38: Within the AWS Shared responsibility model, who is responsible for security and compliance?

Question39: A user wants guidance on possible savings when migrating from on-premises to AWS Which tool is suitable for this scenario?

Question40: A batch workload takes 5 hours to finish on an Amazon EC2 instance. The amount of data to be processed doubles monthly and the processing time is proportional What is the best cloud architecture to address this consistently growing demand?

Question41: When comparing AWS with on-premises Total Cost of Ownership (TCO), what costs are included?

Question42: According to the AWS shared responsibility model what is the sole responsibility of AWS?

Question43: A company has a 500 TB image repository that needs to be transported to AWS for processing.
Which AWS service can import this data MOST cost-effectively?

Question44: Which AWS service offers on-demand access to AWS security and compliance reports?

Question45: A company needs a storage solution that
* Is low-cost.
* Is for infrequently accessed data.
* Quickly accesses data when required.
* Does not require data lo be resilient
Which Amazon S3 storage option should the company use?

Question46: Which load balancer types are available with Elastic Load Balancing (ELB)? (Choose two.)

Question47: Where should a company go to search software listings from independent software vendors to find, test, buy and deploy software that runs on AWS?

Question48: What are the advantages of deploying an application with Amazon EC2 instances in multiple Availability Zones? (Select TWO.)

Question49: Which of the following services is a MySQL-compatible database that automatically grows storage as needed?

Question50: Which pricing model will interrupt a running amazon EC2 instance if capacity becomes temporarily unavailable?

Question51: What are the benefits of using the AWS Cloud for companies with customers in many countries around the world (Select TWO)

Question52: An ecommerce company anticipates a huge increase in web traffic for two very popular upcoming shopping holidays Which AWS service or feature can be configured to dynamically adjust resources to meet this change in demand?

Question53: Under the AWS shared responsibility model, AWS is responsible for what combination of the following? (Select TWO)

Question54: Which of the following are benefits of running a database on Amazon RDS compared to an on-premises database? (Select TWO)

Question55: Which AWS service provides business analytics that enable users to create and publish interactive dashboards?

Question56: What are characteristics of AWS IAM users and groups? (Select TWO.)

Question57: What can a cloud practitioner use to retrieve AWS security and compliance documents and submit them as evidence to an auditor or regulator?

Question58: Which AWS services can be used to set up NoSQL databases? (Select TWO.)

Question59: Which AWS service or feature can be used to monitor for potential disk write spikes on a system running on Amazon EC2?

Question60: A company wants to migrate a MYSQL database to AWS but does not have the budget for Database Administrators to handle routine tasks including provisioning, patching, and performing backups?
Which AWS service will support this use case?

Question61: Which AWS service or feature gives end users the ability to access AWS resources from any location by using an encrypted connection?

Question62: A startup is working on a new application that needs to go to market quickly. The application requirements may need to be adjusted in the near future.
Which of the following is a characteristic of the AWS Cloud that would meet this specific need?

Question63: Which AWS service offers persistent storage for a file system?

Question64: Which is the MINIMUM AWS Support plan that allows for one-hour target response time for support cases?

Question65: According to the AWS shared responsibility model, when using amazon RDS who is responsible for scheduling and performing backups?

Question66: Which of the following are benefits of using AWS Trusted Advisor? (Select TWO.)

Question67: Which of the following services will automatically scale with an expected increase in web traffic?

Question68: How can an AWS user with an AWS Basic Support plan obtain technical assistance from AWS?

Question69: A customer is deploying a new application and needs to choose an AWS Region.
Which of the following factors could influence the customer's decision? (Select TWO.)

Question70: A user has an AWS account with a Business-level AWS Support plan and needs assistance with handling a production service disruption. Which action should the user take?

Question71: A company wants to use an AWS service to continuously monitor the health of its application endpoints based on proximity to application users. The company also needs to route traffic to healthy Regional endpoints and to improve application availability and performance.
Which service will meet these requirements?

Question72: Which of the following inspects AWS environments to find opportunities that can save money for users and also improve system performance?

Question73: Which AWS service can be used to run Amazon EC2 instances on-premises at a user site?

Question74: Where can a user receive help with deploying popular technologies based on AWS best practices, including architecture and deployment instructions?

Question75: Which AWS storage service is designed to transfer petabytes of data in and out of the cloud?

Question76: A company is designing an application hosted in a single AWS Region serving end-users spread across the world. The company wants to provide the end-users low latency access to the application data.
Which of the following services will help fulfill this requirement?

Question77: A company has existing software licenses that it wants bring to AWS, but the licensing model requires licensing physical cores.
How can the company meet this requirement in the AWS cloud?

Question78: What will help a company perform a cost benefit analysis of migrating to the AWS Cloud?

Question79: What is one of the core principles to follow when designing a highly available application in the AWS Cloud?

Question80: Which AWS service can help a company detect an outage of its website servers and redirect users to alternate servers?

Question81: Which guideline is a well-architected design principle for building cloud applications?

Question82: Which of the following can a customer use to enable single sign-on (SSO) to the AWS Console?

Question83: where can user find a catalog of AWS recognized providers of third party security solutions?

Question84: One of the advantages to moving infrastructure from an on-premises data center to the AWS Cloud is:

Question85: which of the following acts as a virtual firewall at the amzon ec2 instance level to control traffic for one or more instance?

Question86: Which managed AWS service provides real-time guidance on AWS security best practices?

Question87: Access keys in AWS Identity and Access Management (IM1) are used to

Question88: What is an Availability Zone in AWS?

Question89: Which AWS services help to improve application performance by reducing latency while accessing content globally? (Select TWO.)

Question90: Which service should a customer use to consolidate and centrally manage multiple AWS accounts?

Question91: Which of the following identify and access management entitles is associated with an access key id and secret access key when using AWS command line interface?

Question92: What is an example of high availability in the AWS Cloud?

Question93: A company previously lost data that was stored in an on-premises data center. To protect against future of data, the company wants to use AWS to automatically launch thousands of its machines in a fully provisioned state in minutes, in a format that supports data restoration.
Which AWS service should the company use to meet these requirements?

Question94: A cloud practitioner is developing a disaster recovery plan and intends to replicate data between multiple geographic areas. Which of the following meets these requirements?

Question95: Which AWS cloud architecture principle states that systems should reduce interdependences?

Question96: A company that does business online needs to quickly deliver new functionality in an iterative manner, minimizing the time to market Which AWS Cloud feature can provide this?

Question97: Which duty is a responsibility ot AWS under the AWS shared responsibility model?

Question98: Which AWS service provides a customized view of the health of specific AWS services that power a customer's workloads running on AWS?

Question99: Which AWS tools assist with estimating costs? (Select three.)

Question100: Amazon Relational Database Service (Amazon RDS) offers which of the following benefits over traditional database management?

Question101: An external auditor has requested that a company provide a list of all its IAM users, including the status of users' credentials and access keys What is the SIMPLEST way to provide this information?

Question102: What are the benefits of consolidated billing for AWS Cloud services? (Select TWO.)

Question103: A company has deployed several relational databases on Amazon EC2 instances Every month the database software vendor releases new security patches that need to be applied to the databases What is the MOST efficient way to apply the security patches?

Question104: Which tool can be used to identity scheduled changes to the AWS infrastructure?

Question105: Which AWS services provides a quick and automated way to create and manage AWS accounts?

Question106: Which architectural principle is used when deploying an Amazon Relational Database Service (Amazon RDS) instance in Multiple Availability Zone mode?

Question107: Which AWS service acts as a data extract transform and load (ETL) tool to make it easy to prepare data for analytics?

Question108: Which AWS services can be used to provide network connectivity between an on-premises network and a VPC? (Select TWO.)

Question109: What approach to transcoding a large number of individual video files adheres to AWS architecture principles?

Question110: Which services use AWS edge locations? (Choose two.)

Question111: Which AWS services provide a way to extend an on-premises architecture lo the AWS Cloud? (Select TWO )

Question112: AWS trusted advisor can monitor and provide advice on what characteristics of an AWS account?

Question113: A solutions architect needs to maintain a fleet of Amazon EC2 instances so that any Impaired instances are replaced with new ones. Which AWS service should the solutions architect use?

Question114: A security officer wants a list of any potential vulnerabilities in Amazon EC2 security groups. Which AWS service should the officer use?

Question115: Which AWS service or feature provides Information about ongoing or upcoming scheduled events that can affect an AWS account?

Question116: A company is looking for a way to encrypt data stored on Amazon S3. Which AWS managed service can be used to help to accomplish this?

Question117: Which AWS Trusted Advisor check includes the verification of AWS CloudTrail logging?

Question118: Which of the following is a cloud architectural design principle?

Question119: Under the AWS shared responsibility model, which of the following is the customer's responsibility?

Question120: Which benefit of the AWS Cloud supports matching the supply of resources with changing workload demands?

Question121: AWS CloudFormation is designed to help the user:

Question122: Which benefit of the AWS clouds supporting matching the supply of resources with changing workloads demands?

Question123: Which of the following benefits does the AWS Compliance program provide to AWS customers? (Choose two.)

Question124: Under the AWS shared responsibility model, customers are responsible for which aspects of security in the cloud? (Choose two.)

Question125: Which service is an AWS-managed Hadoop framework that makes it easy, fast, and costeffective to process large amounts of data across dynamically scalable Amazon EC2 instances?

Question126: Which statement is true about AWS global infrastructure?

Question127: What does AWS Marketplace allow users to do? (Choose two.)

Question128: Which of the following common IT tasks can AWS cover to free up company IT resources? (Select TWO.)

Question129: Which of the following are benefits of hosting infrastructure in the AWS Cloud? (Choose two.)

Question130: Which of the following are main components of the AWS global infrastructure? (Select TWO)

Question131: Which AWS service provides inbound and outbound network ACLs to harden external connectivity to Amazon EC2?

Question132: Which security service automatically recognizes and classifies sensitive data or intellectual property on AWS?

Question133: How can a customer increase security to AWS account logons? (Select TWO )

Question134: What is a benefit of loose coupling as a principle of cloud architecture design?

Question135: Which of the following are categories of AWS Trusted Advisor? (Select TWO.)

Question136: What function do security groups serve related to Amazon Elastic Compute Cloud (Amazon EC2) instance security?

Question137: A company wants to connect to AWS over a private low-latency connection from its remote office. What is the recommended method to meet these requirements'?

Question138: During a compliance review, one of the auditors requires a copy of the AWS SOC 2 report. Which service should be used to submit this request?

Question139: When using Amazon RDS what is the customer responsible for?

Question140: Which Amazon S3 storage class is optimized to provide access to data with lower resiliency requirements, but rapid access when needed, such as duplicate backups?

Question141: Which AWS IAM feature allows developers to access AWS services through the AWS CLI?

Question142: Which of the following acts as a virtual firewall at the Amazon EC2 instance level to control traffic for one or more instances?

Question143: Which actions support the reliability pillar of the AWS Architected Framework? (Select TWO.)

Question144: When architecting cloud applications, which of the following are a key design principle?

Question145: A company needs 24/7 phone email and chat access with a response time of less than 1 hour if a production system has a service interruption Which AWS Support plan meets these requirements at the LOWEST cost?

Question146: Using AWS Identity and Access Management (IAM) to grant access only to the resources needed to perform a task is a concept known as:

Question147: Which of the following is a shared control between the customer and AWS?

Question148: A company has a managed IAM policy that does not grant the necessary permission for users to accomplish required tasks.
How can this be resolved?

Question149: Which AWS Cloud service provides performance recommendations for an AWS account?

Question150: Which AWS service can be used in the application deployment process?

Question151: Which AWS service or tool should a company use to centrally request and track service limit increases?

Question152: A user needs to launch a workload in multiple AWS environments Each copy of the workload must have the same configuration What is the MOST efficient way to accomplish this task?

Question153: An AWS user wants to proactively detect when an Instance or account might be compromised or if there are threats from attacks. Which AWS service should the user choose?

Question154: According to the AWS shared responsibility model, which of the following are AWS responsibilities? (Select TWO.)

Question155: Which AWS service allows for effective cost management of multiple AWS accounts?

Question156: Which of the following allows users to provision a dedicated network connection from their internal network to AWS?

Question157: Which service enables customers to audit and monitor changes in AWS resources?

Question158: A company is releasing a business-critical application Before the release the company needs strategic planning assistance from AWS. During the release, it needs infrastructure event management and real-time Support How can these requirements be met?

Question159: Which AWS characteristics make AWS cost effective for a workload with dynamic user demand? (Select TWO.)

Question160: A company wants to enhance security by launching a third-party ISP intrusion detection system from its AWS account. Which AWS service or resource should the company use to meet this requirement?

Question161: What are the multiple, isolated locations within an AWS Region that are connected by low-latency networks called?

Question162: Which AWS service makes it easy to create and manage AWS users and groups, and provide them with secure access to AWS resources at no charge?

Question163: Which of the following describes the relationships among AWS Regions, Availability Zones, and edge locations? (Select TWO)

Question164: Web servers running on Amazon EC2 access a legacy application running in a corporate data center.
What term would describe this model?

Question165: A company is considering using AWS for a self-hosted database that requires a nightly shutdown for maintenance and cost-saving purposes.
Which service should the company use?

Question166: According to best practices, how should an application be designed to run in the AWS Cloud?

Question167: When comparing AWS to on-premises total cost of ownership (TCO), what costs are included with AWS?

Question168: Which management service can be used to set alarms for AWS resources?

Question169: A company recently deployed an Amazon RDS instance in its VPC. The company needs to implement a stateful firewall to limit traffic to the private corporate network.
Which AWS service or feature should the company use to limit network traffic directly to its RDS instance?

Question170: Which of the following can an AWS customer use to launch a new Amazon Relational Database Service (Amazon RDS) cluster? (Select TWO.)

Question171: Where can users find a catalog of AWS-recognized providers of third-party security solutions?

Question172: How can AWS enable a company to control expenses as an application's usage changes unpredictably?

Question173: Which functions can users perform using AWS KMS?

Question174: Which AWS service handles the deployment details of capacity provisioning, load balancing, Auto Scaling, and application health monitoring?

Question175: Which AWS service enables users to create copies of resources across AWS Regions?

Question176: Which AWS service can a customer use to set up an alert notification when the account is approaching a particular dollar amount?

Question177: A user has limited knowledge of AWS services, but wants to quickly deploy a scalable Node.js application in the AWS Cloud.
Which service should be used to deploy the application?

Question178: Which requirement must be met for a member account to be unlinked from an AWS organization account?

Question179: Which of the following AWS services can be used to serve large amounts of online video content with the lowest possible latency? (Select TWO.)

Question180: In which scenario should Amazon EC2 Spot Instances be used?

Question181: The pay-as-you-go pricing model for AWS services:

Question182: Which AWS service delivers data, videos, applications, and APIs to users globally with low latency and high transfer speeds?

Question183: Performing operations as code is a design principle that supports which pillar of the AWS Well-Architected Framework?

Question184: Which of the following security-related services does AWS offer? (Select TWO.)

Question185: What is an AWS cloud design best practice?

Question186: Which components are required to build a successful site-to-site VPN connection on AWS?
(Select TWO.)

Question187: What are the benefits of developing and running a new application in the AWS Cloud compared to on-premises? (Select TWO )

Question188: A company is deploying a machine learning (ML) research project that will require a lot of compute power over several months. The ML processing jobs do not need to run at specific times.
Which Amazon EC2 instance purchasing option will meet these requirements at the lowest cost?

Question189: A company wants to be nodded when its AWS Cloud costs or usage exceed defined thresholds. Which AWS service will support these requirements?

Question190: Under the AWS shared responsibility model, which of the following is a customer responsibility?

Question191: How does AWS shorten the time to provision IT resources?

Question192: A customer is using multiple AWS accounts with separate billing.
How can the customer take advantage of volume discounts with minimal impact to the AWS resources?

Question193: What exclusive benefit is provided to users with Enterprise Support?

Question194: Which of the following is a component of the shared responsibility model managed entirely by AWS?

Question195: Which are benefits of using Amazon RDS over Amazon EC2 when running relational databases on AWS? (Select TWO )

Question196: Which of the following is a component of the AWS Global Infrastructure?

Question197: When comparing the total cost of ownership (TCO) of an on-premises infrastructure to a cloud architecture, what costs should be considered? (Choose two.)

Question198: Which disaster recovery scenario offers the lowest probability of down time?

Question199: A company wants to implement an automated security assessment of the scanty and network accessibility of its Amazon EC2 instances. Which AWS service can be used To accomplish this?

Question200: Which of the following are features of Amazon CloudWatch Logs? (Select TWO.)

Question201: Which AWS service provides a simple and scalable shared file storage solution for use with Linux-based AWS and on-premises servers?

Question202: How do customers benefit from Amazon's massive economies of scale?

Question203: Amazon Route 53 enables users to:

Question204: Which of the following Reserved Instance (RI) pricing models provides the highest average savings compared to On-Demand pricing?

Question205: Which of the following AWS features enables a user to launch a pre-configured Amazon Elastic Compute Cloud (Amazon EC2) instance?

Question206: A company is building an application that requires the ability to send, store, and receive messages between application components. The company has another requirement to process messages in first-in. first-out (FIFO) order.
Which AWS service should the company use?

Question207: A company must store critical business data in Amazon S3 with a backup to another AWS Region How can this be achieved?

Question208: which AWS tools automatically forecast future AWS costs?

Question209: A user needs to regularly audit and evaluate the setup of all AWS resources, identify non-compliant accounts, and be notified when a resource changes. Which AWS service can be used to meet these requirements?

Question210: Which AWS feature enables users to categorize and track their AWS costs?

Question211: The continual reduction of AWS Cloud pricing is due to:

Question212: A company is using Amazon Elastic Container Service (Amazon ECS) for a development environment AWS is responsible for which Amazon ECS components? (Select TWO.)

Question213: A company wants to build a new architecture with AWS services. The company needs to compare service costs at various scales Which AWS service, tool, or feature should the company use to meet the requirement?

Question214: A user needs to determine whether an Amazon EC2 instance's security groups were modified in the last month. How can the user see if a change was made?

Question215: Which AWS Support plan offers access to self-paced labs?

Question216: A company needs 247 phone, email, and chat access, with a response time of less than 1 hour it a production system has a service interruption. Which AWS Support plan meets these requirements at the LOWEST cost?

Question217: Which AWS service can be used to generate alerts based on an estimated monthly bill?

Question218: Which AWS support plan includes a dedicated Technical Account Manager?

Question219: A Cloud Practitioner needs to store data for 7 years to meet regulatory requirements.
Which AWS service will meet this requirement at the LOWEST cost?

Question220: A company has a compliance requirement to encrypt data in transit and at rest. The company is serving the content through Amazon EC2 instances behind an Elastic Load Balancer and is storing data in Amazon Elastic Block Store (Amazon EBS) volumes Which combination of AWS services should the company use to stay compliant with this requirement? (Select TWO )

Question221: Which Amazon Virtual Private Cloud (Amazon VPC) feature enables users to connect two VPCs together?

Question222: A cloud practitioner needs to obtain AWS compliance reports before migrating an environment to the AWS Cloud. How can these reports be generated?

Question223: After migrating a workload to AWS, which associated costs must a user still manage?
364 of 65 Flag for Review

Question224: Which AWS service provides a report that enables users to assess AWS infrastructure compliance?

Question225: Which AWS feature should a customer leverage to achieve high availability of an application?

Question226: Which AWS service provides alerts when an AWS event may impact a company's AWS resources?

Question227: A system in the AWS Cloud is designed to withstand the failure of one or more components.
What is this an example of?

Question228: Which AWS Cost Management tool allows you to view the most granular data about your AWS bill?

Question229: A company needs to perform a one-time migration of 40 TB of data from its on-premises storage servers to Amazon S3. The transfer must happen as quickly as possible while keeping costs to a minimum. The company has 100 Mbps internet connectivity.
Which AWS service will meet these requirements?

Question230: Which AWS service or feature can be used to prevent SQL injection attacks?

Question231: When a company provisions web servers in multiple AWS Regions, what is being increased?

Question232: When should a company consider using Amazon EC2 Spot Instances? (Select TWO )

Question233: The financial benefits of using AWS are: (Select TWO.)

Question234: How would an AWS customer easily apply common access controls to a large set of users?

Question235: Who is responsible for managing IAM user access and secret keys according to the AWS shared responsibility model?

Question236: Which of the following is an advantage of using AWS?

Question237: What costs are included when comparing AWS Total Cost of Ownership (TCO) with on-premises TCO?

Question238: Which Amazon EC2 principle model offers the MOS I significant discount when compared to On-Demand Instances?

Question239: A company will be moving from an on-premises data center to the AWS Cloud.
What would be one financial difference after the move?

Question240: A customer needs to run a MySQL database that easily scales.
Which AWS service should they use?

Question241: A user warts to securely automate me management and rotation of credentials that are shared between applications, while spending the least amount of time on managing tasks.
Which AWS service or feature can be used to accomplish this?

Question242: Which of the following AWS Cloud services can be used to run a customer-managed relational database?

Question243: Which of the following BEST describe the AWS pricing model? (Select TWO )

Question244: What is an AWS Identity and Access Management (IAM) role?

Question245: What is an advantage of deploying an application across multiple Availability Zones?

Question246: What is the lowest-cost, durable storage option for retaining database backups for immediate retrieval?

Question247: Which AWS services should be used for read/write of constantly changing data? (Select TWO.)