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Amazon ANS-C01 Practice Test - Questions Answers, Page 14

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Question 131

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A banking company has an application that must connect to specific public IP addresses from a VPC. A network engineer has configured routes in the route table that is associated with the application

Question 132

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An ecommerce company needs to Implement additional security controls on all its domain names that are hosted in Amazon Route 53. The company's new policy requires data authentication and data integr

Question 133

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A company uses the us-east-1 Region and the ap-south-1 Region for its business units (BUs). The BUs are named BU-1 and BU-2. For each BU. there are two VPCs in us-east-1 and one VPC in ap-south-1.

Question 134

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A company's network engineer must implement a cloud-based networking environment for a network operations team to centrally manage. Other teams will use the environment. Each team must be able to de

Question 135

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A company's AWS infrastructure is spread across more than 50 accounts and across five AWS Regions. The company needs to manage its security posture with simplified administration and maintenance for

Question 136

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A network engineer is working on a private DNS design to integrate AWS workloads and on-premises resources. The AWS deployment consists of five VPCs in the eu-west-1 Region that connect to the on-pr

Question 137

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A company is migrating its on-premises network from its data center in Virginia to its data center in New York. The AWS Direct Connect connections for the Virginia and New York data center locations

Question 138

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A company runs an application on Amazon EC2 instances. A network engineer implements a NAT gateway in the application's VPC to replace self-managed NAT instances. After the network engineer shifts t

Question 139

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A network engineer needs to improve the network security of an existing AWS environment by adding an AWS Network Firewall firewall to control internet-bound traffic. The AWS environment consists of

Question 140

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A company has deployed a multi-VPC environment in the AWS Cloud. The company uses a transit gateway to connect all the VPCs together. In the past, the company has experienced a loss of connectivity

Related questions

A banking company is successfully operating its public mobile banking stack on AWS. The mobile banking stack is deployed in a VPC that includes private subnets and public subnets. The company is using IPv4 networking and has not deployed or supported IPv6 in the environment. The company has decided to adopt a third-party service provider's API and must integrate the API with the existing environment. The service provider’s API requires the use of IPv6. A network engineer must turn on IPv6 connectivity for the existing workload that is deployed in a private subnet. The company does not want to permit IPv6 traffic from the public internet and mandates that the company's servers must initiate all IPv6 connectivity. The network engineer turns on IPv6 in the VPC and in the private subnets. Which solution will meet these requirements?

A bank built a new version of its banking application in AWS using containers that content to an onpremises database over VPN connection. This application version requires users to also update their client application. The bank plans to deprecate the earlier client version. However, the company wants to keep supporting earlier clients through their on-premises version of the application to serve a small portion of the customers who haven’t yet upgraded. What design will allow the company to serve both newer and earlier clients in the MOST efficient way?

A company is using an Amazon CloudFront distribution that is configured with an Application Load Balancer (ALB) as an origin. A network engineer needs to implement a solution that requires all inbound traffic to the ALB to come from CloudFront. The network engineer must implement the solution at the network layer rather than in the application. Which solution will meet these requirements in the MOST operationally efficient way?

A company has an AWS Site-to-Site VPN connection between its existing VPC and on-premises network. The default DHCP options set is associated with the VPC. The company has an application that is running on an Amazon Linux 2 Amazon EC2 instance in the VPC. The application must retrieve an Amazon RDS database secret that is stored in AWS Secrets Manager through a private VPC endpoint. An on-premises application provides internal RESTful API service that can be reached by URL ( https://api.example.internal ). Two on-premises Windows DNS servers provide internal DNS resolution. The application on the EC2 instance needs to call the internal API service that is deployed in the onpremises environment. When the application on the EC2 instance attempts to call the internal API service by referring to the hostname that is assigned to the service, the call fails. When a network engineer tests the API service call from the same EC2 instance by using the API service's IP address, the call is successful. What should the network engineer do to resolve this issue and prevent the same problem from affecting other resources in the VPC?

A company's development team has created a new product recommendation web service. The web service is hosted in a VPC with a CIDR block of 192.168.224.0/19. The company has deployed the web service on Amazon EC2 instances and has configured an Auto Scaling group as the target of a Network Load Balancer (NLB). The company wants to perform testing to determine whether users who receive product recommendations spend more money than users who do not receive product recommendations. The company has a big sales event in 5 days and needs to integrate its existing production environment with the recommendation engine by then. The existing production environment is hosted in a VPC with a CIDR block of 192.168.128 0/17. A network engineer must integrate the systems by designing a solution that results in the least possible disruption to the existing environments. Which solution will meet these requirements?

An ecommerce company needs to Implement additional security controls on all its domain names that are hosted in Amazon Route 53. The company's new policy requires data authentication and data integrity verification for all queries to the company's domain names. The current Route 53 architecture has four public hosted zones. A network engineer needs to implement DNS Security Extensions (DNSSEC) signing and validation on the hosted zones. The solution must include an alert capability. Which combination of steps will meet these requirements? {Select THREE)

A company has established connectivity between its on-premises data center in Paris, France, and the AWS Cloud by using an AWS Direct Connect connection. The company uses a transit VIF that connects the Direct Connect connection with a transit gateway that is hosted in the Europe (Paris) Region. The company hosts workloads in private subnets in several VPCs that are attached to the transit gateway. The company recently acquired another corporation that hosts workloads on premises in an office building in Tokyo, Japan. The company needs to migrate the workloads from the Tokyo office to AWS. These workloads must have access to the company's existing workloads in Paris. The company also must establish connectivity between the Tokyo office building and the Paris data center. In the Asia Pacific (Tokyo) Region, the company creates a new VPC with private subnets for migration of the workloads. The workload migration must be completed in 5 days. The workloads cannot be directly accessible from the internet. Which set of steps should a network engineer take to meet these requirements?

A company has deployed a critical application on a fleet of Amazon EC2 instances behind an Application Load Balancer. The application must always be reachable on port 443 from the public internet. The application recently had an outage that resulted from an incorrect change to the EC2 security group. A network engineer needs to automate a way to verify the network connectivity between the public internet and the EC2 instances whenever a change is made to the security group. The solution also must notify the network engineer when the change affects the connection. Which solution will meet these requirements?

A company is deploying AWS Cloud WAN with edge locations in the us-east-1 Region and the ap-southeast-2 Region. Individual AWS Cloud WAN segments are configured for the development environment, the production environment, and the shared services environment at each edge location. Many new VPCs will be deployed for the environments and will be configured as attachments to the AWS Cloud WAN core network. The company's network team wants to ensure that VPC attachments are configured for the correct segment. The network team will tag the VPC attachments by using the Environment key with a value of the corresponding environment segment name. The segment for the production environment in us-east-1 must require acceptance for attachment requests. AH other attachment requests must not require acceptance. Which solution will meet these requirements?

A company is planning to host external websites on AWS. The websites will include multiple tiers such as web servers, application logic services, and databases. The company wants to use AWS Network Firewall. AWS WAR and VPC security groups for network security. The company must ensure that the Network Firewall firewalls are deployed appropriately within relevant VPCs. The company needs the ability to centrally manage policies that are deployed to Network Firewall and AWS WAF rules. The company also needs to allow application teams to manage their own security groups while ensuring that the security groups do not allow overly permissive access. What is the MOST operationally efficient solution that meets these requirements?

Question 131

A banking company has an application that must connect to specific public IP addresses from a VPC. A network engineer has configured routes in the route table that is associated with the application's subnet to the required public IP addresses through an internet gateway.

The network engineer needs to set up email notifications that will alert the network engineer when a user adds a default route to the application subnet's route table with the internet gateway as a target.

Which solution will meet these requirements with the LEAST implementation effort?

Create an AWS Lambda function that reads the routes in the route table and sends an email notification. Configure the Lambda function to send an email notification if any route is configured with 0.0.0.0/0 or ::/0 CIDRs to the internet gateway. Configure the Lambda function to run every minute.

Create an AWS Lambda function that will be invoked by an Amazon EC2 CreateRoute API call. Configure the Lambda function to send an email notification. Configure the Lambda function to send an email notification if any route is configured with 0.0.0.0/0 or ::/0 CIDRs to the internet gateway.

Create AWS Config rules for the route table by using the internet-gateway-authorized-vpc-only managed rule. Create an Amazon EventBridge rule to match the AWS Config rule and to route to an Amazon Simple Notification Service (Amazon SNS) topic to send an email notification.

Create an AWS Config rule for the route table by using the no-unrestricted-route-to-igw managed rule. Create an Amazon EventBridge rule to match the AWS Config rule and to route to an Amazon Simple Notification Service (Amazon SNS) topic to send an email notification.

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Question 132

A network engineer needs to implement DNS Security Extensions (DNSSEC) signing and validation on the hosted zones. The solution must include an alert capability.

Which combination of steps will meet these requirements? {Select THREE)

Enable DNSSEC signing for Route 53. Request that Route 53 create a Key-signing key (KSK) based on a customer managed key in AWS Key Management Service (AWS KMS).

Enable DNSSEC signing for Route 53. Request that Route 53 create a zone-signing key (ZSK) based on a customer managed key in AWS Key Management Service (AWS KMS).

Create a chain of trust for the hosted zones by adding a Delegation Signer (DS) record for each subdomain.

Create a chain of trust for the hosted zones by adding a Delegation Signer (DS) record to the parent zone.

Set up an Amazon CloudWatch alarm that provides an alert whenever a DNSSECInternalFailure error or DNSSECKeySigningKeysNeedingAction error is detected.

Set up an AWS CloudTrail alarm that provides an alert whenever a DNSSECInternalFailure error or DNSSECKeySigningKeysNeedingAction error is detected.

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Question 133

A company uses the us-east-1 Region and the ap-south-1 Region for its business units (BUs). The BUs are named BU-1 and BU-2. For each BU. there are two VPCs in us-east-1 and one VPC in ap-south-1.

Because of workload isolation requirements, resources can communicate within the same BU but cannot communicate with resources in the other BU. The company plans to add more BUs and plans to expand into more Regions.

Which solution will meet these requirements with the MOST operational efficiency?

Configure an AWS Cloud WAN network that operates in the required Regions Attach all BU VPCs to the AWS Cloud WAN core network. Update the AWS Cloud WAN segment actions to configure new routes to deny traffic between the different BU segments.

Configure a transit gateway in each Region. Configure peering between the transit gateways. Attach the BU VPCs to the transit gateway in the corresponding Region. Configure the transit gateway and VPC route tables to isolate traffic between BU VPCs.

Configure an AWS Cloud WAN network that operates in the required Regions. Attach all BU VPCs to the AWS Cloud WAN core network. Update the core network policy by setting the isolate-attachments parameter for each segment.

Configure an AWS Cloud WAN network that operates in the required Regions. Create AWS Cloud WAN segments for each BU. Configure VPC attachments for each BU's VPCs to the corresponding BU segment.

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Question 134

A company's network engineer must implement a cloud-based networking environment for a network operations team to centrally manage. Other teams will use the environment. Each team must be able to deploy infrastructure to the environment and must be able to manage its own resources. The environment must feature IPv4 and IPv6 support and must provide internet connectivity in a dual-stack configuration.

The company has an organization in AWS Organizations that contains a workload account for the teams. The network engineer creates a new networking account in the organization.

Which combination of steps should the network engineer take next to meet the requirements? (Select THREE)

Create a new VPC. Associate an IPv4 CIDR block of 10.0.0.0/16 and specify an IPv6 block of 2001: db8:c5a:6000::/56. Provision subnets by assigning /24 IPv4 CIDR blocks and /64 IPv6 CIDR blocks.

Create a new VPC. Associate an IPv4 CIDR block of 10.0.0.0/16 and use an Amazon-provided IPv6 CIDR block. Provision subnets by assigning /24 IPv4 CIDR blocks and 164 IPv6 CIDR blocks.

Enable sharing of resources within the organization by using AWS Resource Access Manager (AWS RAM). Create a resource share in the networking account, select the provisioned subnets, and share the provisioned subnets with the target workload account. Use the workload account to accept the resource share through AWS RAM.

Enable sharing of resources within the organization by using AWS Resource Access Manager (AWS RAM). Create a resource share in the networking account, select the new VPC. and share the new VPC with the target workload account. Use the workload account to accept the resource share through AWS RAM.

Create an internet gateway and an egress-only internet gateway. Deploy NAT gateways to the public subnets. Associate the internet gateway with the new VPC. Update the route tables. Associate the route tables with the relevant subnets.

Create an internet gateway. Deploy NAT instances to public subnets. Update the route tables. Associate the route tables with the relevant subnets.

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Question 135

A company's AWS infrastructure is spread across more than 50 accounts and across five AWS Regions. The company needs to manage its security posture with simplified administration and maintenance for all the AWS accounts. The company wants to use AWS Firewall Manager to manage the firewall rules and requirements.

The company creates an organization with all features enabled in AWS Organizations.

Which combination of steps should the company take next to meet the requirements? (Select THREE)

Configure only the Firewall Manager administrator account to join the organization.

Configure all the accounts to join the organization.

Set an account as the Firewall Manager administrator account.

Set an account as the Firewall Manager child account.

Set up AWS Config for all the accounts and all the Regions where the company has resources.

Set up AWS Config for only the organization's management account.

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Question 136

A network engineer is working on a private DNS design to integrate AWS workloads and on-premises resources. The AWS deployment consists of five VPCs in the eu-west-1 Region that connect to the on-premises network over AWS Direct Connect. The VPCs communicate with each other by using a transit gateway. Each VPC is associated with a private hosted zone that uses the aws.example.internal domain. The network engineer creates an Amazon Route 53 Resolver outbound endpoint in a shared services VPC and attaches the shared services VPC to the transit gateway.

The network engineer is implementing a solution for DNS resolution. Queries for hostnames that end with aws.example.internal must use the private hosted zone. Queries for hostnames that end with all other domains must be forwarded to a private on-premises DNS resolver.

Which solution will meet these requirements?

Add a forwarding rule for''''''that targets the on-premises server's DNS IP address. Add a system rule for aws.example.internal that targets Route 53 Resolver.

Add a forwarding rule for aws example.internal that targets Route 53 Resolver. Add a system rule for V that targets the Route 53 Resolver outbound endpoint.

Add a forwarding rule for''''''that targets the Route 53 Resolver outbound endpoint.

Add a forwarding rule for'.' that targets the Route 53 Resolver outbound endpoint.

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Question 137

A company is migrating its on-premises network from its data center in Virginia to its data center in New York. The AWS Direct Connect connections for the Virginia and New York data center locations are both associated to the us-east-1 Region. The company needs to migrate a private VIF on an existing Direct Connect hosted connection from Virginia to New York. The company's on-premises network uses the connection to access VPCs through a Direct Connect gateway in us-east-1.

The company has already requested a new Direct Connect hosted connection from the new data center to the New York Direct Connect location.

Which solution will meet these requirements with the LEAST downtime?

Create a new private VIF on the new Direct Connect hosted connection Create a new Direct Connect gateway and attach the gateway to the new private VIF. Configure BGP routing on the new private VIF as a backup route. Perform the switchover during a maintenance window by shutting down BGP on the existing private VIF. Decommission the existing Direct Connect connection.

Create a new private VIF on the new Direct Connect hosted connection. Attach the new private VIF to the existing Direct Connect gateway. Configure BGP routing on the new private VIF as a backup route. Perform the switchover during a maintenance window by shutting down BGP on the existing private VIF. Decommission the existing Direct Connect connection.

During a maintenance window, migrate the existing private VIF to the new Direct Connect hosted connection. Attach the existing private VIF to the existing Direct Connect gateway. Decommission the existing Direct Connect connection.

During a maintenance window, delete the existing private VIF and create a new private VIF to the new Direct Connect hosted connection. Attach the new private VIF to the existing Direct Connect gateway. Decommission the existing Direct Connect hosted connection.

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Question 138

A company runs an application on Amazon EC2 instances. A network engineer implements a NAT gateway in the application's VPC to replace self-managed NAT instances. After the network engineer shifts traffic from the self-managed NAT instances to the NAT gateway, users begin to report issues.

During troubleshooting, the network engineer discovers that the connection to the application is closing after approximately 6 minutes of inactivity.

What should the network engineer do to resolve this issue?

Check for increases in the Amazon CloudWatch IdleTimeoutCount metric for the NAT gateway. Configure TCP keepalive on the application EC2 instances.

Check for increases in the Amazon CloudWatch ErrorPortAIlocation metric for the NAT gateway. Configure an HTTP timeout value on the application EC2 instances.

Check for increases in the Amazon CloudWatch PacketsDropCount metric for the NAT gateway. Configure an HTTPS timeout value on the application EC2 instances.

Check for decreases in the Amazon CloudWatch ActiveConnectionCount metric for the NAT gateway. Configure UDP keepalive on the application EC2 instances.

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Question 139

A network engineer needs to improve the network security of an existing AWS environment by adding an AWS Network Firewall firewall to control internet-bound traffic. The AWS environment consists of five VPCs. Each VPC has an internet gateway. NAT gateways, public Application Load Balancers (ALBs), and Amazon EC2 instances. The EC2 instances are deployed in private subnets. The architecture is deployed across two Availability Zones.

The network engineer must be able to configure rules for the public IP addresses in the environment, regardless of the direction of traffic. The network engineer must add the firewall by implementing a solution that minimizes changes to the existing production environment. The solution also must ensure high availability.

Which combination of steps should the network engineer take to meet these requirements? (Select TWO)

Create a centralized inspection VPC with subnets in two Availability Zones. Deploy Network Firewall in this inspection VPC with an endpoint in each Availability Zone.

Configure new subnets in two Availability Zones in each VPC. Deploy Network Firewall in each VPC with an endpoint in each Availability Zone.

Deploy Network Firewall in each VPC. Use existing subnets in each of the two Availability Zones to deploy Network Firewall endpoints.

Update the route tables that are associated with the private subnets that host the EC2 instances. Add routes to the Network Firewall endpoints.

Update the route tables that are associated with the public subnets that host the NAT gateways and the ALBs. Add routes to the Network Firewall endpoints.

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Question 140

A company has deployed a multi-VPC environment in the AWS Cloud. The company uses a transit gateway to connect all the VPCs together. In the past, the company has experienced a loss of connectivity between applications after changes to security groups, network ACLs. and route tables in a VPC. When these changes occur, the company wants to automatically verify that connectivity still exists between different resources in a single VPC.

Which solution will meet these requirements?

Create a list of paths between different resources to check in VPC Reachability Analyzer. Create an Amazon EventBridge rule to monitor when a change is made and logged in Amazon CloudWatch. Configure the rule to invoke an AWS Lambda function to test the different paths in Reachability Analyzer.

Create a list of paths between different resources to check in VPC Reachability Analyzer. Create an Amazon EventBridge rule to monitor when a change is made and logged in AWS CloudTrail. Configure the rule to invoke an AWS Lambda function to test the different paths in Reachability Analyzer.

Create a list of paths to check in AWS Network Manager Route Analyzer. Create an Amazon EventBridge rule to monitor when a change is made and logged in Amazon CloudWatch. Configure the rule to invoke an AWS Lambda function to test the different paths in Route Analyzer.

Create a list of paths to check in AWS Network Manager Route Analyzer. Create an Amazon EventBridge rule to monitor when a change is made and logged in AWS CloudTrail. Configure the rule to invoke an AWS Lambda function to test the different paths in Route Analyzer.

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