ANS-C01 Exam Details

  • Exam Code
    :ANS-C01
  • Exam Name
    :AWS Certified Advanced Networking - Specialty (ANS-C01)
  • Certification
    :Amazon Certifications
  • Vendor
    :Amazon
  • Total Questions
    :285 Q&As
  • Last Updated
    :May 24, 2026

Amazon ANS-C01 Online Questions & Answers

  • Question 151:

    A company is deploying third-party firewall appliances for traffic inspection and NAT capabilities in its VPC. The VPC is configured with private subnets and public subnets. The company needs to deploy the firewall appliances behind a load balancer.

    Which architecture will meet these requirements MOST cost-effectively?

    A. Deploy a Gateway Load Balancer with the firewall appliances as targets. Configure the firewall appliances with a single network interface in a private subnet. Use a NAT gateway to send the traffic to the internet after inspection.
    B. Deploy a Gateway Load Balancer with the firewall appliances as targets. Configure the firewall appliances with two network interfaces: one network interface in a private subnet and another network interface in a public subnet. Use the NAT functionality on the firewall appliances to send the traffic to the internet after inspection.
    C. Deploy a Network Load Balancer with the firewall appliances as targets. Configure the firewall appliances with a single network interface in a private subnet. Use a NAT gateway to send the traffic to the internet after inspection.
    D. Deploy a Network Load Balancer with the firewall appliances as targets. Configure the firewall appliances with two network interfaces: one network interface in a private subnet and another network interface in a public subnet. Use the NAT functionality on the firewall appliances to send the traffic to the internet after inspection.

  • Question 152:

    A real estate company is building an internal application so that real estate agents can upload photos and videos of various properties. The application will store these photos and videos in an Amazon S3 bucket as objects and will use

    Amazon DynamoDB to store corresponding metadata. The S3 bucket will be configured to publish all PUT events for new object uploads to an Amazon Simple Queue Service (Amazon SQS) queue.

    A compute cluster of Amazon EC2 instances will poll the SQS queue to find out about newly uploaded objects. The cluster will retrieve new objects, perform proprietary image and video recognition and classification update metadata in

    DynamoDB and replace the objects with new watermarked objects. The company does not want public IP addresses on the EC2 instances.

    Which networking design solution will meet these requirements MOST cost-effectively as application usage increases?

    A. Place the EC2 instances in a public subnet. Disable the Auto-assign Public IP option while launching the EC2 instances. Create aninternet gateway. Attach the internet gateway to the VPC. In the public subnet's route table, add a default route that points to the internet gateway.
    B. Place the EC2 instances in a private subnet. Create a NAT gateway in a public subnet in the same Availability Zone. Create an internet gateway. Attach the internet gateway to the VPC. In the public subnet's route table, add a default route that points to the internet gateway
    C. Place the EC2 instances in a private subnet. Create an interface VPC endpoint for Amazon SQS. Create gateway VPC endpoints for Amazon S3 and DynamoDB.
    D. Place the EC2 instances in a private subnet. Create a gateway VPC endpoint for Amazon SQS. Create interface VPC endpoints for Amazon S3 and DynamoDB.

  • Question 153:

    A company has a transit gateway in a single AWS account. The company sends flow logs for the transit gateway to an Amazon CloudWatch Logs log group.

    The company created an AWS Lambda function to analyze the logs. The Lambda function sends a notification to an Amazon Simple Notification Service (Amazon SNS) topic when a VPC generates traffic that is dropped by the transit gateway. Each notification contains the account ID. VPC ID, and total amount of dropped packets.

    The company wants to subscribe a new Lambda function to the SNS topic. The new Lambda function must automatically prevent the traffic that is identified in each notification from leaving a VPC by applying a network ACL to the transit

    gateway attachment subnets in the VPC that generates the traffic.

    Which solution will meet these requirements?

    A. Configure the existing Lambda function to add the destination IP addresses of the dropped traffic to each SNS notification. Configure the new Lambda function to create an outbound rule by using the destination IP addresses in the network ACL.
    B. Configure the existing Lambda function to add the source IP addresses of the dropped traffic to each SNS notification. Configure the new Lambda function to create an inbound rule by using the source IP addresses in the network ACL.
    C. Configure the existing Lambda function to add the source IP addresses of the dropped traffic to each SNS notification. Configure the new Lambda function to create an outbound rule by using the source IP addresses in the network ACL.
    D. Configure the existing Lambda function to add the destination IP addresses of the dropped traffic to each SNS notification. Configure the new Lambda function to create an inbound rule by using the destination IP addresses in the network ACL.

  • Question 154:

    A financial trading company is using Amazon EC2 instances to run its trading platform. Part of the company's trading platform includes a third-party pricing service that the EC2 instances communicate with over UDP on port 50000.

    Recently, the company has had problems with the pricing service. Some of the responses from the pricing service appear to be incorrectly formatted and are not being processed successfully. The third-party vendor requests access to the

    data that the pricing service is returning. The third-party vendor wants to capture request and response data for debugging by logging in to an EC2 instance that accesses the pricing service. The company prohibits direct access to production

    systems and requires all log analysis to be performed in a dedicated monitoring account.

    Which set of steps should a network engineer take to capture the data and meet these requirements?

    A. 1. Configure VPC flow logs to capture the data that flows in the VPC. 2. Send the data to an Amazon S3 bucket. 3. In the monitoring account, extract the data that flows to the EC2 instance's IP address and filter the traffic for the UDP data. 4. Provide the data to the third-party vendor.
    B. 1. Configure a traffic mirror filter to capture the UDP data. 2. Configure Traffic Mirroring to capture the traffic for the EC2 instance's elastic network interface. 3. Configure a packet inspection package on a new EC2 instance in the production environment. Use the elastic network interface of the new EC2 instance as the target for the traffic mirror. 4. Extract the data by using the packet inspection package. 5. Provide the data to the third-party vendor.
    C. 1. Configure a traffic mirror filter to capture the UDP data. 2. Configure Traffic Mirroring to capture the traffic for the EC2 instance's elastic network interface. 3. Configure a packet inspection package on a new EC2 instance in the monitoring account. Use the elastic network interface of the new EC2 instance as the target for the traffic mirror. 4. Extract the data by using the packet inspection package. 5. Provide the data to the third-party vendor.
    D. 1. Create a new Amazon Elastic Block Store (Amazon EBS) volume. Attach the EBS volume to the EC2 instance. 2. Log in to the EC2 instance in the production environment. Run the tcpdump command to capture the UDP data on the EBS volume. 3. Export the data from the EBS volume to Amazon S3. 4. Provide the data to the third-party vendor.

  • Question 155:

    A real estate company is using Amazon Workspaces to provide corporate managed desktop service to its real estate agents around the world.

    These Workspaces are deployed in seven VPCs. Each VPC is in a different AWS Region. According to a new requirement, the company's cloud-hosted security information and events management (SIEM) system needs to analyze DNS queries generated by the Workspaces to identify the target domains that are connected to the Workspaces. The SIEM system supports poll and push methods for data and log collection.

    Which solution should a network engineer implement to meet these requirements MOST cost-effectively?

    A. Create VPC flow logs in each VPC that is connected to the Workspaces instances. Publish the log data to a central Amazon S3 bucket. Configure the SIEM system to poll the S3 bucket periodically.
    B. Configure an Amazon CloudWatch agent to log all DNS requests in Amazon CloudWatch Logs. Configure a subscription filter in CloudWatch Logs. Push the logs to the SIEM system by using Amazon Kinesis Data Firehose.
    C. Configure VPC Traffic Mirroring to copy network traffic from each Workspace and to send the traffic to the SIEM system probes for analysis.
    D. Configure Amazon Route 53 query logging. Set the destination as an Amazon Kinesis Data Firehose delivery stream that is configured to push data to the SIEM system.

  • Question 156:

    A company is running business applications on AWS. The company uses 50 AWS accounts, thousands of VPCs, and 3 AWS Regions across the United States and Europe.

    A network engineer needs to establish network connectivity between an on-premises data center and the Regions. The network engineer also must establish connectivity between the VPCs. On-premises: users and applications must be able

    to connect to applications that run in the VPCs.

    The company has an existing AWS Direct Connect connection that the network engineer can use. The network engineer creates a transit gateway in each Region and configures the transit gateways as inter-Region peers.

    Which solution will provide network connectivity from the on-premises data center to the Regions and will provide inter-VPC communications across the different Regions?

    A. Create a private VIF with a gateway type of virtual private gateway. Configure the private VIF to use a virtual private gateway that is associated with one of the VPCs.
    B. Create a private VIF to a new Direct Connect gateway. Associate the new Direct Connect gateway with a virtual private gateway in each VPC.
    C. Create transit VIF with a gateway association to a new Direct Connect gateway. Associate each transit gateway with the new Direct Connect gateway.
    D. Create an AWS Site-to-Site VPN connection that uses a public VIF for the Direct Connect connection. Attach the Site-to-Site VPN connection to the transit gateways.

  • Question 157:

    A company is building an internet-facing application that is hosted on an Amazon Elastic Kubernetes Service (Amazon EKS) cluster. The company is using the Amazon VPC Container Network Interface (CNI) plugin for Kubernetes for pod networking connectivity. The company needs to expose its application to the internet by using a Network Load Balancer (NLB). The pods that host the application must have visibility of the source IP address that is contained in the original packet that the NLB receives.

    How should the network engineer configure the NLB and Amazon EKS settings to achieve these goals?

    A. Specify the Ip target type for the NLB. Set the externalTrafficPolicy attribute to Local in the Kubernetes service specification.
    B. Specify the instance target type for the NLB. Set the externalTrafficPolicy attribute to Cluster in the Kubernetes service specification
    C. Specify the instance target type for the NLB. Set the externalTrafficPolicy attribute to Local in the Kubernetes service specification.
    D. Specify the Ip target type for the NLB. Set the externalTrafficPolicy attribute to Cluster in the Kubernetes service specification

  • Question 158:

    A company has an on-premises data center in the United States. The data center is connected to AWS by an AWS Direct Connect connection. The data center has a private VIF that is connected to a Direct Connect gateway.

    Recently, the company opened a new data center in Europe and established a new Direct Connect connection between the Europe data center and AWS. A new private VIF connects to the existing Direct Connect gateway.

    The company wants to use Direct Connect SiteLink to set up a private network between the data center in the United States and the data center in Europe.

    Which solution will meet these requirements in the MOST operationally efficient manner?

    A. Create a new public VIF from each data center. Enable SiteLink on the new public VIFs.
    B. Create a new transit VIF from each data center. Enable SiteLink on the new transit VIFs.
    C. Use the existing VIF from each data center. Enable SiteLink on the existing private VIFs.
    D. Create a new AWS Site-to-Site VPN connection between the data centers. Configure the new connection to use SiteLink.

  • Question 159:

    A company is building an API-based application on AWS and is using a microservices architecture for the design. The company is using a multi-account AWS environment that includes a separate AWS account for each microservice development team. Each team hosts its microservice in its own VPC that contains Amazon EC2 instances behind a Network Load Balancer (NLB).

    A network engineer needs to use Amazon API Gateway in a shared services account to create an HTTP API to expose these microservices to external applications. The network engineer must ensure that access to the microservices can occur only over a private network. Additionally, the company must be able to control which entities from its internal network can connect to the microservices. In the future, the company will create more microservices that the company must be able to integrate with the application.

    What is the MOST secure solution that meets these requirements?

    A. Create an Application Load Balancer (ALB) in a VPC in the shared services account. Configure the integration to the API Gateway API by using a VPC link. Associate the VPC link with the ALB. Create a VPC endpoint service in each microservice account. Create an AWS PrivateLink endpoint for those services in the shared services account. Add the elastic network interface IP addresses of the VPC endpoint as targets for the target group of the ALB.
    B. Create an Application Load Balancer (ALB) in a VPC in the shared services account. Configure the integration to the API Gateway API by using a VPC link. Associate the VPC link with the ALConnect all the VPCs to each other by using a central transit gateway. Add the IP addresses of the NLB as IP-based targets in the ALB target group.
    C. Configure the integration to the API Gateway API by using HTTP-based integration. Connect all the VPCs to each other by using a central transit gateway. Create a separate HTTP integration to each NLB for each microservice. Add the HTTP endpoint of the NLB as the endpoint URL in the HTTP integration.
    D. Configure the integration to the API Gateway API by using VPC link integration. Connect all the VPCs to each other by using a central transit gateway. Create a separate VPC link to each NLB for each microservice. Add the HTTP endpoint of the NLB as the endpoint URL in the VPC link integration.

  • Question 160:

    A company has agreed to collaborate with a partner for a research project. The company has multiple VPCs in the us-east-1 Region that use CIDR blocks within 10.10.0.0/16. The VPCs are connected by a transit gateway that is named TGW- C in us-east-1. TGW-C has an Autonomous System Number (ASN) configuration value of 64520.

    The partner has multiple VPCs in us-east-1 that use CIDR blocks within 172.16.0.0/16. The VPCs are connected by a transit gateway that is named TGW-P in us-east-1. TGW-P has an ASN configuration value of 64530.

    A network engineer needs to establish network connectivity between the company's VPCs and the partner's VPCs in us-east-1.

    Which solution will meet these requirements with MINIMUM changes to both networks?

    A. Create a new VPC in a new account. Deploy a router from AWS Marketplace. Share TGW-C and TGW-P with the new account by using AWS Resource Access Manager (AWS RAM). Associate TGW-C and TGW-P with the new VPC. Configure the router in the new VPC to route between TGW-C and TGW-P.
    B. Create an IPsec VPN connection between TGW-C and TGW-P. Configure the routing between the transit gateways to use the IPsec VPN connection.
    C. Configure a cross-account transit gateway peering attachment between TGW-C and TGW-P. Configure the routing between the transit gateways to use the peering attachment.
    D. Share TGW-C with the partner account by using AWS Resource Access Manager (AWS RAM). Associate the partner VPCs with TGW-C. Configure routing in the partner VPCs and TGW-C.

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