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Amazon Web Services ANS-C01 Exam With Confidence Using Practice Dumps

Exam Code:
ANS-C01
Exam Name:
Amazon AWS Certified Advanced Networking - Specialty
Certification:
AWS Certified Specialty
Vendor:
Amazon Web Services
Questions:
288
Last Updated:
Jul 20, 2025
Exam Status:
Stable
Amazon Web Services ANS-C01

ANS-C01: AWS Certified Specialty Exam 2025 Study Guide Pdf and Test Engine

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Amazon AWS Certified Advanced Networking - Specialty Questions and Answers

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Question 1

A company has deployed Amazon EC2 instances in private subnets in a VPC. The EC2 instances must initiate any requests that leave the VPC, including requests to the company's on-premises data center over an AWS Direct Connect connection. No resources outside the VPC can be allowed toopen communications directly to the EC2 instances.

The on-premises data center's customer gateway is configured with a stateful firewall device that filters for incoming and outgoing requests to and from multiple VPCs. In addition, the company wants to use a single IP match rule to allow all the communications from the EC2 instances to its data center from a single IP address.

Which solution will meet these requirements with the LEAST amount of operational overhead?

Options:

A.

Create a VPN connection over the Direct Connect connection by using the on-premises firewall. Use the firewall to block all traffic from on premises to AWS. Allow a stateful connection from the EC2 instances to initiate the requests.

B.

Configure the on-premises firewall to filter all requests from the on-premises network to the EC2 instances. Allow a stateful connection if the EC2 instances in the VPC initiate the traffic.

C.

Deploy a NAT gateway into a private subnet in the VPC where the EC2 instances are deployed. Specify the NAT gateway type as private. Configure the on-premises firewall to allow connections from the IP address that is assigned to the NAT gateway.

D.

Deploy a NAT instance into a private subnet in the VPC where the EC2 instances are deployed. Configure the on-premises firewall to allow connections from the IP address that is assigned to the NAT instance.

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Question 2

A company is using third-party firewall appliances to monitor and inspect traffic on premises The company wants to use this same model on AWS. The company has a single VPC with an internet gateway. The VPC has a fleet of web servers that run on Amazon EC2 instances that are managed by an Auto Scaling group.

The company's network team needs to work with the security team to establish inline inspection of all packets that are sent to and from the web servers. The solution must scale as the fleet of virtual firewall appliances scales.

Which combination of steps should the network team take to implement this solution? (Select THREE.)

Options:

A.

Create a new VPC, and deploy a fleet of firewall appliances. Create a Gateway Load Balancer. Add the firewall appliances as targets.

B.

Create a security group for use with the firewall appliances, and allow port 443. Allow a port for the Gateway Load Balancer to perform health checks.

C.

Create a security group for use with the firewall appliances, and allow port 6081. Allow a port for the Gateway Load Balancer to perform health checks.

D.

Deploy a fleet of firewall appliances to the existing VPC. Create a Gateway Load Balancer. Add the firewall appliances as targets.

E.

Update the internet gateway route table and the web server route table to send traffic to and from the internet to the VPC endpoint ID of the Gateway Load Balancer. Update the subnet route table that is associated with the Gateway Load Balancer endpoint to direct internet traffic to the internet gateway.

F.

Create a new route table inside the web server VPC. Create a new edge association with the internet gateway. Update the internet gateway route table and the web server route table to send traffic to and from the internet to the VPC endpoint ID of the Gateway Load Balancer. Update the subnet route table that is associated with the Gateway Load Balancer endpoint to direct internet traffic to the internet gateway.

Question 3

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 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 on-premises 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?

Options:

A.

Create a new DHCP options set that specifies the on-premises Windows DNS servers. Associate the new DHCP options set with the existing VPC. Reboot the Amazon Linux 2 EC2 instance.

B.

Create an Amazon Route 53 Resolver rule. Associate the rule with the VPC. Configure the rule to forward DNS queries to the on-premises Windows DNS servers if the domain name matches example.internal.

C.

Modify the local host file in the Amazon Linux 2 EC2 instance in the VPMap the service domain name (api.example.internal) to the IP address of the internal API service.

D.

Modify the local /etc/resolv.conf file in the Amazon Linux 2 EC2 instance in the VPC. Change the IP addresses of the name servers in the file to the IP addresses of the company's on-premisesWindows DNS servers.

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