EMT Practice Test

1. Question Content...

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Question1: A company is about to migrate an application from its on-premises data center to AWS. As part of the planning process, the following requirements involving DNS have been identified.
The organization's VPC uses the CIDR block 172.16.0.0/16.
Assuming that there is no DNS namespace overlap, how can these requirements be met?

Question2: A company is building a hybrid PCI-DSS compliant application that runs in the us-west-2 Region and on-premises. The application sends access logs from all locations to a single Amazon S3 bucket in us-west-2 To protect this sensitive data, the bucket policy is configured to deny access from public IP addresses How should an engineer configure the network to meet these requirements?

Question3: You want to ensure you have the absolute best transmission rates inside and outside your VPC.
You are concerned about the MTU settings. What is the best way to configure your T2 instances to ensure the best compatibility?
Choose the correct answer:

Question4: A Network Engineer is provisioning a subnet for a load balancer that will sit in front of a fleet of application servers in a private subnet. There is limited IP space left in the VPC CIDR. The application has few users now but is expected to grow quickly to millions of users.
What design will use the LEAST amount of IP space, while allowing for this growth?

Question5: You have a server that serves www, FTP, and mail. You need to access this server using www.yourname.com, ftp.yourname.com, and mail.yourname.com. You want to ensure an IP change results in the least number of other changes. What is the best solution? Choose the correct answer:

Question6: You have deployed a website that utilizes CloudFront, Elastic Loadbalancer, and S3 to serve content. When users access your site, they receive a "mixed content" security warning. What is most likely the problem?
Choose the correct answer:

Question7: A company has 225 mobile and desktop devices and 300 partner VPNs that need access to an AWS VPC. VPN users should not be able to reach one another. Which approach will meet the technical and security requirements while minimizing costs?

Question8: A customer has set up multiple VPCs for Dev, Test, Prod, and Management. You need to set up AWS Direct Connect to enable data flow from on-premises to each VPC. The customer has monitoring software running in the Management VPC that collects metrics from the instances in all the other VPCs. Due to budget requirements, data transfer charges should be kept at minimum.
Which design should be recommended?

Question9: You are building an application that provides real-time audio and video services to customers on the Internet. The application requires high throughput. To ensure proper audio and video transmission, minimal latency is required.
Which of the following will improve transmission quality?

Question10: Which of the following does not configure Amazon CloudFront cache behaviors to forward cookies to an origin for web distributions?

Question11: You can use the ____ command of the AWS Config service CLI to see the compliance state for each AWS resource of a specific type.

Question12: An application runs on a fleet of Amazon EC2 instances in a VPC. All instances can reach one another using private IP addresses. The application owner has a new requirement that the domain name received via DHCP should be different for a particular set of instances that are currently in one particular subnet.
What changes should be made to meet this requirement while continuing to support the existing application requirements?

Question13: Your company runs an application for the US market in the us-east-1 AWS region. This application uses proprietary TCP and UDP protocols on Amazon Elastic Compute Cloud (EC2) instances. End users run a real-time, front-end application on their local PCs. This front-end application knows the DNS hostname of the service.
You must prepare the system for global expansion. The end users must access the application with lowest latency.
How should you use AWS services to meet these requirements?

Question14: Your company needs to leverage Amazon Simple Storage Solution (S3) for backup and archiving. According to company policy, data should not flow on the public Internet even if data is encrypted. You have set up two S3 buckets in us-east-1 and us-west-2. Your company data center is located on the West Coast of the United States.
The design must be cost-effective and enable minimal latency.
Which design should you set up?

Question15: Which service would you use to see if your infrastructure has changed? Choose the correct answer:

Question16: All IP addresses within a 10.0.0.0/16 VPC are fully utilized with application servers across two Availability Zones. The application servers need to send frequent UDP probes to a single central authentication server on the Internet to confirm that is running up-to-date packages. The network is designed for application servers to use a single NAT gateway for internal access. Testing reveals that a few of the servers are unable to communicate with the authentication server.

Question17: Your company runs an HTTPS application using an Elastic Load Balancing (ELB) load balancer/PHP on nginx server/RDS in multiple Availability Zones. You need to apply Geographic Restriction and identify the client's IP address in your application to generate dynamic content.
How should you utilize AWS services in a scalable fashion to perform this task?

Question18: A corporate network routing table contains 624 individual RFC 1918 and public IP prefixes. You have two AWS Direct Connect connectors. You congure a private virtual interface on both connections to a virtual private gateway. The virtual private gateway is not currently attached to a VPC. Neither BGP session will maintain the Established state on the customer router. The AWS Management Console reports the private virtual interfaces as Down.
What could you do to address the problem so that the AWS Management Console reports the private virtual interface as Available?

Question19: In the "start using the AWS Direct Connect steps," when can you complete the Cross Connect step?

Question20: An organization processes consumer information submitted through its website. The organization's security policy requires that personally identifiable information (PII) elements are specifically encrypted at all times and as soon as feasible when received. The front-end Amazon EC2 instances should not have access to decrypted PII. A single service within the production VPC must decrypt the PII by leveraging an iAM role.
Which combination of services will support these requirement? (Select two.)

Question21: Your organization needs to resolve DNS entries stored in an Amazon Route 53 private zone "awscloud:internal" from the corporate network. An AWS Direct Connect connection with a private virtual interface is configured to provide access to a VPC with the CIDR block 192.168.0.0/16. A DNS Resolver (BIND) is configured on an Amazon Elastic Compute Cloud (EC2) instance with the IP address 192.168.10.5 within the VPC. The DNS Resolver has standard root server hints configured and conditional forwarding for "awscloud.internal" to the IP address 192.168.0.2.
From your PC on the corporate network, you query the DNS server at 192.168.10.5 for www.amazon.com. The query is successful and returns the appropriate response. When you query for "server.awscloud.internal", the query times out. You receive no response.
How should you enable successful queries for "server.awscloud.internal"?

Question22: When an AWS Config rule is triggered a JSON object known as an AWS Config Event is created.
This object contains a(n) ____ attribute, which is a JSON-formatted set of key/value pairs the receiving AWS Lambda function processes as part of its evaluation logic.

Question23: A Lambda function needs to access the private address of an Amazon ElastiCache cluster in a VPC. The Lambda function also needs to write messages to Amazon SQS. The Lambda function has been configured to run in a subnet in the VPC.
Which of the following actions meet the requirements? (Select two.)

Question24: You need to set up a VPN between AWS VPC and your on-premises network. You create a VPN connection in the AWS Management Console, download the configuration file, and install it on your on-premises router.
The tunnel is not coming up because of firewall restrictions on your router. Which two network traffic options should you allow through the firewall? (Select two.)

Question25: A company is deploying a non-web application on an AWS load balancer. All targets are servers located on-premises that can be accessed by using AWS Direct Connect. The company wants to ensure that the source IP addresses of clients connecting to the application are passed all the way to the end server.
How can this requirement be achieved?

Question26: A company provisions an AWS Direct Connect connection to permit access to Amazon EC2 resources in several Amazon VPCs and to data stored in private Amazon S3 buckets. The Network Engineer needs to configure the company's on-premises router for this Direct Connect connection.
Which of the following actions will require the LEAST amount of configuration overhead on the customer router?

Question27: You are managing a VPC with 4 AZs. There is a load balancer managing the public accessibility to your servers. You have a secondary ENI with a private IPv4 address on an instance that is serving public web traffic. Your server communicates over private addresses to a database in another subnet. Security is a major concern for your company and whitelisting is in effect. You have to bring the web server down for maintenance, what two things should you do? Choose the
2 correct answers:

Question28: Which of these modes is not a configuration mode for a WAF? Choose the correct answer:

Question29: You have a static VPN connecting your data center and your VPC. You currently have 50 routes added to your route table. You want to add more; how should you do this? Choose the correct answer:

Question30: Which of these is not required when setting up a VIF? Choose the correct answer:

Question31: You have to set up an AWS Direct Connect connection to connect your on-premises to an AWS VPC. Due to budget requirements, you can only provision a single Direct Connect port. You have two border gateway routers at your on-premises data center that can peer with the Direct Connect routers for redundancy.
Which two design methodologies, in combination, will achieve this connectivity? (Select two.)

Question32: The Web Application Development team is worried about malicious activity from 200 random IP addresses.
Which action will ensure security and scalability from this type of threat?

Question33: You have a data center with a 2 connection LAG. You wish to add 2 more connections, how many LOAs must you complete?
Choose the correct answer:

Question34: What are two reasons that could cause an HTTP health check to fail? Choose the 2 correct answers:

Question35: A company has a VPC in the us-west-1 Region and another VPC in the ap-southeast-2 Region Network engineers set up an AWS Direct Connect connection from their data center to the us-east-1 Region They create a private virtual interface (VIF) that references a Direct Connect gateway, which is then connected to virtual private gateways in both VPCs When the setup is complete, the engineers cannot access resources in us-west-1 from ap-southeast-2 What should the network engineers do to resolve this issued

Question36: A company has an application running in an Amazon VPC that must be able to communicate with on-premises resources in a data center. Network traffic between AWS and the data center will initially be minimal, but will increase to more than 10 Gbps over the next few months. The company's goal is to launch the application as quickly as possible.
The Network Engineer has been asked to design a hybrid IT connectivity solution.
What should be done to meet these requirements?

Question37: A company has an AWS Direct Connect connection between its on-premises data center and Amazon VPC.
An application running on an Amazon EC2 instance in the VPC needs to access confidential data stored in the on-premises data center with consistent performance For compliance purposes, data encryption is required.
What should the network engineer do to meet these requirements?

Question38: In Amazon CloudFront, which of the following is true of Smooth Streaming?

Question39: When configuring Active/Passive HA on VPN tunnels, choose the two best ways to configure this.
Choose the 2 correct answers:

Question40: An organization has three AWS accounts with each containing VPCs in Virginia, Canada and the Sydney regions. The organization wants to determine whether all available Elastic IP addresses (EIPs) in these accounts are attached to Amazon EC2 instances or in use elastic network interfaces (ENIs) in all of the specified regions for compliance and cost-optimization purposes.
Which of the following meets the requirements with the LEAST management overhead?

Question41: Your company's policy requires that all VPCs peer with a "common services: VPC. This VPC contains a fleet of layer 7 proxies and an Internet gateway. No other VPC is allowed to provision an Internet gateway. You configure a new VPC and peer with the common service VPC as required by policy. You launch an Amazon EC2. Windows instance configured to forward all traffic to the layer 7 proxies in the common services VPC.
The application on this server should successfully interact with Amazon S3 using its properly configured AWS Identity and Access Management (IAM) role. However, Amazon S3 is returning 403 errors to the application.
Which step should you take to enable access to Amazon S3?

Question42: You have a DX connection and a VPN connection as backup for your 10.0.0.0/16 network. You just received a letter indicating that the colocation provider hosting the DX connection will be undergoing maintenance soon. It is critical that you do not experience any downtime or latency during this period. What is the best course of action? Choose the correct answer:

Question43: You use a VPN to extend your corporate network into a VPC. Instances in the VPC are able to resolve resource records in an Amazon Route 53 private hosted zone. Your on-premises DNS server is configured with a forwarder to the VPC DNS server IP address. On-premises users are unable to resolve names in the private hosted zone, although instances in a peered VPC can.
What should you do to provide on-premises users with access to the private hosted zone?

Question44: An organization delivers high-resolution, dynamic web content. Internet users access the content from a variety of platforms, including mobile, tablet and desktop. Each platform receives a customized experience to account for the differences in viewing modes. A dedicated, automatic-scaling fleet of Amazon EC2 instances is used for each platform to server content based on path-based headers.
Which combination of services will MINIMIZE cost and MAXIMIZE performance? (Select two.)

Question45: You have a three-tier web application with separate subnets for Web, Applications, and Database tiers. Your CISO suspects your application will be the target of malicious activity. You are tasked with notifying the security team in the event your application is port scanned by external systems.
Which two AWS Services cloud you leverage to build an automated notification system? (Select two.)

Question46: A network engineer is managing two AWS Direct Connect connections. Each connection has a public virtual interface configured with a private ASN. The engineer wants to configure active/passive routing between the Direct Connect connections to access Amazon public endpoints. What BGP configuration is required for the on-premises equipment? (Select two.)

Question47: In Amazon CloudFront, if you need to quickly remove objects from a distribution, you can:

Question48: Your company maintains an Amazon Route 53 private hosted zone. DNS resolution is restricted to a single, pre-existing VPC. For a new application deployment, you create an additional VPC in the same AWS account. Both this new VPC and your on-premises DNS infrastructure must resolve records in the existing private hosted zone.
Which two activities are required to enable DNS resolution both within the new VPC and from the on-premises infrastructure? (Select two.)

Question49: An organization will be expanding its current network design. When fully built out, there will be 99 VPCs spread across 11 AWS accounts (9 VPCs per account). There is currently an AWS Direct Connect connection into one account with 9 VPCs, each with a virtual network interface (VIF) per VPC.
Which of the following designs will minimize cost while allowing the organization to expand?

Question50: Your company is connecting one data center with one router to several VPCs and needs to access them transitively. What should you do?
Choose the correct answer:

Question51: Your organization has a newly installed 1-Gbps AWS Direct Connect connection. You order the cross- connect from the Direct Connect location provider to the port on your router in the same facility. To enable the use of your first virtual interface, your router must be configured appropriately.
What are the minimum requirements for your router?

Question52: You deploy an Amazon EC2 instance that runs a web server into a subnet in a VPC. An Internet gateway is attached, and the main route table has a default route (0.0.0.0/0) configured with a target of the Internet gateway.
The instance has a security group configured to allow as follows:
* Protocol: TCP
* Port: 80 inbound, nothing outbound
The Network ACL for the subnet is configured to allow as follows:
* Protocol: TCP
* Port: 80 inbound, nothing outbound
When you try to browse to the web server, you receive no response.
Which additional step should you take to receive a successful response?

Question53: You currently use a single security group assigned to all nodes in a clustered NoSQL database. Only your cluster members in one region must be able to connect to each other. This security group uses a selfreferencing rule using the cluster security group's group-id to make it easier to add or remove nodes from the cluster. You need to make this database comply with out-of-region disaster recovery requirements and ensure that the network traffic between the nodes is encrypted when travelling between regions. How should you enable secure cluster communication while deploying additional cluster members in another AWS region?

Question54: A department in your company has created a new account that is not part of the organization's consolidated billing family. The department has also created a VPC for its workload. Access is restricted by network access control lists to the department's on-premises private IP allocation.
An AWS Direct Connect private virtual interface for this VPC advertises a default route to the company network. When the department downloads data from an Amazon Elastic Compute Cloud(EC2) instance in its new VPC, what are the associated charges?

Question55: You are the AWS cloud architect and have been tasked with designing an appropriate subnetting design for your production VPC. Your production VPC requires secure communications back to the corporate private network. Quality of Service (QoS) is very important 24x7 for this particular connection, as real-time data is passed continually backwards and forwards between your on- prem bioinformatics enterprise application, and the number crunching servers deployed in the cloud. Any potential latency incurred on this connection will have a direct impact on the company's ability to attract investors and expansion into new markets. Select the correct network configuration that best facilitates your company's continued growth plans.

Question56: You have a three-tier web application with separate subnets for Web, Applications, and Database tiers. Your CISO suspects your application will be the target of malicious activity. You are tasked with notifying the security team in the event your application is port scanned by external systems.
Which two AWS Services cloud you leverage to build an automated notification system? (Select two.)

Question57: You need to set up an Amazon Elastic Compute Cloud (EC2) instance for an application that requires the lowest latency and the highest packet-per-second network performance. The application will talk to other servers in a peered VPC.
Which two of the following components should be part of the design? (Select two.)

Question58: Which of the following types of contents cannot serve over HTTP or HTTPS in Amazon CloudFront?

Question59: You are configuring a virtual interface for access to your VPC on a newly provisioned 1-Gbps AWS Direct Connect connection. Which two configuration values do you need to provide? (Select two.)

Question60: An organization launched an IPv6-only web portal to support IPv6-native mobile clients. Front- end instances launch in an Amazon VPC associated with an appropriate IPv6 CIDR. The VPC IPv4 CIDR is fully utilized. A single subnet exists in each of two Availability Zones with appropriately configured IPv6 CIDR associations. Auto Scaling is properly configured, and no Elastic Load Balancing is used.
Customers say the service is unavailable during peak load times. The network engineer attempts to launch an instance manually and receives the following message: "There are not enough free addresses in subnet `subnet-12345677' to satisfy the requested number of instances." What action will resolve the availability problem?

Question61: A company wants to use thin clients running virtual desktops to replace 500 desktop computers used by its call center employees The company is evaluating Amazon Workspaces as a solution A network engineer who is testing with a thin client is unable to conned to Amazon Workspaces After entering credentials the network engineer receives the following error:
"An error occurred while launching your Workspace Please try again"
What should the network engineer do to resolve this issue?

Question62: You need to quickly view inbound traffic to an instance to determine why it isn't reaching the instance properly. What is the best tool for this? Choose the correct answer:

Question63: Your customer's internal security teams receive requests to allow Amazon S3 access from inside the corporate network. All external traffic must be explicitly whitelisted through your corporate firewalls.
How can your security team grant this access?

Question64: You are architecting your e-business application for PCI compliance. To meet the compliance requirements, you need to monitor web application logs to identify any malicious activity. You also need to monitor for remote attempts to change the network interface of web instances.
Which two AWS services will be helpful to achieve this goal?

Question65: An AWS CloudFormation template is being used to create a VPC peering connection between two existing operational VPCs, each belonging to a different AWS account. All necessary components in the 'Remote' (receiving) account are already in place.
The template below creates the VPC peering connection in the Originating account. It contains these components:
AWSTemplateFormation Version: 2010-09-09
Parameters:
Originating VCId:
Type: String
RemoteVPCId:
Type: String
RemoteVPCAccountId:
Type: String
Resources:
newVPCPeeringConnection:
Type: 'AWS::EC2::VPCPeeringConnection'
Properties:
VpcdId: !Ref OriginatingVPCId
PeerVpcId: !Ref RemoteVPCId
PeerOwnerId: !Ref RemoteVPCAccountId
Which additional AWS CloudFormation components are necessary in the Originating account to create an operational cross-account VPC peering connection with AWS CloudFormation? (Select two.)

Question66: Imagine you are using AWS Direct Connect with just one connection from your router to the AWS Direct Connect router. If your connection becomes unavailable, the communication with AWS cloud is lost. What is the best method to prevent this from happening?

Question67: Which service is used by default to store the CloudTrail log files?

Question68: A space exploration company owns a series of telescopes that capture a large number of images and data of the night sky. The images and data are processed on an application hosted on AWS Fargate in a target group assigned to an Application Load Balancer (ALB). The application is made available through the address https /'space example com Scientists require another custom-built application hosted on several Amazon EC2 instances within an Auto Scaling group. This application will be made available from the address https://space.example.com/meteor. The company needs a solution that can automatically scale from a small number of requests overnight to a large number of requests for a future meteor shower.
What is the MOST operationally efficient solution that meets these requirements?

Question69: You have a global corporate network with 153 individual IP prefixes in your internal routing table. You establish a private virtual interface over AWS Direct Connect to a VPC that has an Internet gateway (iGW).
All instances in the VPC must be able to route to the Internet via an IGW and route to the global corporate network via the VGW.
How should you configure your on-premises BGP peer to meet these requirements?

Question70: A VPC is deployed with a 10 0 0.0/16 CIDR block. The engineering team is reviewing DHCP options and there is disagreement about the valid DNS addresses available for the VPC Which addresses are valid IP addresses provided by Amazon for this subnet' (Select TWO.)

Question71: Your company runs an HTTPS application using an Elastic Load Balancing (ELB) load balancer/PHP on nginx server/RDS in multiple Availability Zones. You need to apply Geographic Restriction and identify the client's IP address in your application to generate dynamic content.
How should you utilize AWS services in a scalable fashion to perform this task?

Question72: An organization has three AWS accounts with each containing VPCs in Virginia, Canada and the Sydney regions. The organization wants to determine whether all available Elastic IP addresses (EIPs) in these accounts are attached to Amazon EC2 instances or in use elastic network interfaces (ENIs) in all of the specified regions for compliance and cost-optimization purposes.
Which of the following meets the requirements with the LEAST management overhead?

Question73: Your organization needs to resolve DNS entries stored in an Amazon Route 53 private zone
"awscloud:internal" from the corporate network. An AWS Direct Connect connection with a private virtual interface is configured to provide access to a VPC with the CIDR block 192.168.0.0/16. A DNS Resolver (BIND) is configured on an Amazon Elastic Compute Cloud (EC2) instance with the IP address 192.168.10.5 within the VPC. The DNS Resolver has standard root server hints configured and conditional forwarding for
"awscloud.internal" to the IP address 192.168.0.2.
From your PC on the corporate network, you query the DNS server at 192.168.10.5 for www.amazon.com.
The query is successful and returns the appropriate response. When you query for "server.awscloud.internal", the query times out. You receive no response.
How should you enable successful queries for "server.awscloud.internal"?

Question74: To connect to public AWS products such as Amazon EC2 and Amazon S3 through the AWS Direct Link, which step is NOT required?

Question75: You work for a company that has several instances running with automatically assigned public IPs. You performed an upgrade that required you to restart the instances from the console and your DNS records don't work anymore. What happened? Choose the correct answer:

Question76: Which two choices can serve as a directory service for WorkSpaces? Choose the 2 correct answers:

Question77: Your company uses an NTP server to synchronize time across systems. The company runs multiple versions of Linux and Windows systems. You discover that the NTP server has failed, and you need to add an alternate NTP server to your instances.
Where should you apply the NTP server update to propagate information without rebooting your running instances?

Question78: An organization is migrating its on-premises applications to AWS by using a lift-and-shift approach, taking advantage of managed AWS services wherever possible. The company must be able to edit the application code during the migration phase. One application is a traditional three- tier application, consisting of a web presentation tier, an application tier, and a database tier. The external calling client applications need their sessions to remain sticky to both the web and application nodes that they initially connect to.
Which load balancing solution would allow the web and application tiers to scale horizontally independent from one another other?

Question79: An organization delivers high-resolution, dynamic web content. Internet users access the content from a variety of platforms, including mobile, tablet and desktop. Each platform receives a customized experience to account for the differences in viewing modes. A dedicated, automatic-scaling fleet of Amazon EC2 instances is used for each platform to server content based on path-based headers.
Which combination of services will MINIMIZE cost and MAXIMIZE performance? (Select two.)

Question80: In AWS Direct Connect, to provide for failover, AWS recommends that you request and configure two dedicated connections to AWS.
These connections can terminate on one or two routers in your network. You can do this while
__________________ with AWS Direct Connect step.

Question81: You are a holdings company that buys many businesses and must integrate their VPCs into your network. You are constantly encountering networks with similar or overlapping subnets. What is the best way to manage this.
Choose the correct answer:

Question82: You deploy an Amazon EC2 instance that runs a web server into a subnet in a VPC. An Internet gateway is attached, and the main route table has a default route (0.0.0.0/0) configured with a target of the Internet gateway.
The instance has a security group configured to allow as follows:
* Protocol: TCP
* Port: 80 inbound, nothing outbound
The Network ACL for the subnet is configured to allow as follows:
* Protocol: TCP
* Port: 80 inbound, nothing outbound
When you try to browse to the web server, you receive no response.
Which additional step should you take to receive a successful response?

Question83: You have been asked to monitor traffic flows on your Amazon EC2 instance. You will be performing deep packet inspection, looking for atypical patterns.
Which tool will enable you to look at this data?

Question84: Which of these is not specified on an ENI?
Choose the correct answer:

Question85: In the context of Amazon CloudFront Actions, you use the _____ when specifying APIs in IAM policies.

Question86: Your company operates a single AWS account. A common services VPC is deployed to provide shared services, such as network scanning and compliance tools. Each AWS workload uses its own VPC, and each VPC must peer with the common services VPC. You must choose the most efficient and cost effective approach.
Which approach should be used to automate the required VPC peering?

Question87: Your company runs an application for the US market in the us-east-1 AWS region. This application uses proprietary TCP and UDP protocols on Amazon Elastic Compute Cloud (EC2) instances. End users run a real-time, front-end application on their local PCs. This front-end application knows the DNS hostname of the service.
You must prepare the system for global expansion. The end users must access the application with lowest latency.
How should you use AWS services to meet these requirements?

Question88: An organization delivers high-resolution, dynamic web content. Internet users access the content from a variety of platforms, including mobile, tablet and desktop. Each platform receives a customized experience to account for the differences in viewing modes. A dedicated, automatic-scaling fleet of Amazon EC2 instances is used for each platform to server content based on path-based headers.
Which combination of services will MINIMIZE cost and MAXIMIZE performance? (Select two.)

Question89: You need to set up an Amazon Elastic Compute Cloud (EC2) instance for an application that requires the lowest latency and the highest packet-per-second network performance. The application will talk to other servers in a peered VPC.
Which two of the following components should be part of the design? (Select two.)

Question90: In AWS Direct Connect, which of the following is true of configuring your router to connect to the AWS Direct Connect router?

Question91: You need to create a subnet in a VPC that supports 1000 hosts. You need to be as accurate as possible since you run a very large company. What CIDR should you use? Choose the correct answer:

Question92: Your organization uses a VPN to connect to your VPC but must upgrade to a 1-G AWS Direct Connect connection for stability and performance. Your telecommunications provider has provisioned the circuit from your data center to an AWS Direct Connect facility and needs information on how to cross-connect (e.g., which rack/port to connect).
What is the AWS-recommended procedure for providing this information?

Question93: You are responsible for several EC2 instances deployed from Amazon AMIs that are required to upload information to an S3 bucket. This information must not traverse the public internet. You must also be able to update the instances. Which option is your best solution? Choose the correct answer:

Question94: Your company has set up AWS Direct Connect to connect on-premises to an Amazon VPC instance. Two Direct Connect connections terminate at two different Direct Connect locations. You are using two routers, R1 and R2, at your end (one of each Direct Connect connection). R1 and R2 do NOT have connectivity between them. Both routers advertise the same routers over BGP to the VGW. You have a stateful firewall on each router. The routers drop some of the traffic coming from the VPC.
Which two actions should you take to fix this problem? (Select two.)

Question95: An organization is replacing a tape backup system with a storage gateway. there is currently no connectivity to AWS. Initial testing is needed.
What connection option should the organization use to get up and running at minimal cost?

Question96: What number does the binary number 10101000 correspond to? Choose the correct answer:

Question97: You are deploying an EC2 instance in a private subnet that requires access to the Internet. One of the requirements for this solution is to restrict access to only particular URLs on a whitelist. In addition to the whitelisted URL, the instances should be able to access any Amazon S3 bucket in the same region via any URL.
Which of the following solutions should you deploy? (Select two.)

Question98: You have a three-tier web application with separate subnets for Web, Applications, and Database tiers. Your CISO suspects your application will be the target of malicious activity. You are tasked with notifying the security team in the event your application is port scanned by external systems.
Which two AWS Services cloud you leverage to build an automated notification system? (Select two.)

Question99: You currently use a single security group assigned to all nodes in a clustered NoSQL database. Only your cluster members in one region must be able to connect to each other. This security group uses a self-referencing rule using the cluster security group's group-id to make it easier to add or remove nodes from the cluster. You need to make this database comply with out-of-region disaster recovery requirements and ensure that the network traffic between the nodes is encrypted when travelling between regions. How should you enable secure cluster communication while deploying additional cluster members in another AWS region?

Question100: You run a well-architected, multi-AZ application in the eu-central-1 (Frankfurt) AWS region. The application is hosted in a VPC and is only accesses from the corporate network. To support large volumes of data transfer and administration of the application, you use a single 10-Gbps AWS Direct Connect connection with multiple private virtual interfaces. As part of a review, you decide to improve the resilience of your connection to AWS and make sure that any additional connectivity does not share the same Direct Connect routers at AWS. You need to provide the best levels of resilience to meet the application's needs.
Which two options should you consider? (Select two.)

Question101: Which two methods can be used to ensure items are distributed only to the correct parties?
Choose the 2 correct answers:

Question102: A company has 225 mobile and desktop devices and 300 partner VPNs that need access to an AWS VPC.
VPN users should not be able to reach one another. Which approach will meet the technical and security requirements while minimizing costs?

Question103: You are preparing to launch Amazon WorkSpaces and need to configure the appropriate networking resources.
What must be configured to meet this requirement?

Question104: Under increased cybersecurity concerns, a company is deploying a near real-time intrusion detection system (IDS) solution. A system must be put in place as soon as possible. The architecture consists of many AWS accounts, and all results must be delivered to a central location.
Which solution will meet this requirement, while minimizing downtime and costs?

Question105: An organization with a growing e-commerce presence uses the AWS CloudHSM to offload the SSL/TLS processing of its web server fleet. The company leverages Amazon EC2 Auto Scaling for web servers to handle the growth. What architectural approach is optimal to scale the encryption operation?

Question106: A company uses a single connection to the internet when connecting its on-premises location to AWS. It has selected an AWS Partner Network (APN) Partner to provide a point-to-point circuit for its first-ever 10 Gbps AWS Direct Connect connection.
What steps must be taken to order the cross-connect at the Direct Connect location?

Question107: A space exploration company owns a series of telescopes that capture a large number of images and data of the night sky. The images and data are processed on an application hosted on AWS Fargate in a target group assigned to an Application Load Balancer (ALB). The application is made available through the address https
/'space example com
Scientists require another custom-built application hosted on several Amazon EC2 instances within an Auto Scaling group. This application will be made available from the address https://space.example.com/meteor.
The company needs a solution that can automatically scale from a small number of requests overnight to a large number of requests for a future meteor shower.
What is the MOST operationally efficient solution that meets these requirements?

Question108: A company has deployed a production environment in the AWS Cloud The environment is contained in a VPC and includes a virtual private gateway The company has established an AWS Direct Connect connection which includes a private virtual interface (VIF) and a VPN connection to the on-premises data center For traffic originating in the VPC what is the order of BGP path selection from MOST preferred to LEAST preferred?