Free Amazon ANS-C01 Exam Questions

Question 1

A company hosts a web application that runs on a fleet of Amazon EC2 instances behind an Application Load Balancer (ALB). The instances are in an Auto Scaling group. The company uses an Amazon CloudFront distribution with the ALB as an origin. The application recently experienced an attack. In response, the company associated an AWS WAF web ACL with the CloudFront distribution. The company needs to use Amazon Athena to analyze application attacks that AWS WAF detects. Which solution will meet this requirement?

A : Configure the ALB and the EC2 instance subnets to produce VPC flow logs. Configure the VPC flow logs to deliver logs to an Amazon S3 bucket for log analysis.

B : Create a trail in AWS CloudTrail to capture data events. Configure the trail to deliver logs to an Amazon S3 bucket for log analysis.

C : Configure the AWS WAF web ACL to deliver logs to an Amazon Kinesis Data Firehose delivery stream. Configure the stream to deliver the data to an Amazon S3 bucket for log analysis.

D : Turn on access logging for the ALB. Configure the access logs to deliver the logs to an Amazon S3 bucket for log analysis.

Answer: D

Question 2

A company wants to implement a distributed architecture on AWS that uses a Gateway Load Balancer (GWLB) and GWLB endpoints. The company has chosen a hub-and-spoke model. The model includes a GWLB and virtual appliances that are deployed into a centralized appliance VPC and GWLB endpoints. The model also includes internet gateways that are configured in spoke VPCs. Which sequence of traffic flow to the internet from the spoke VPC is correct?

A : 1.An application in a spoke VPC sends traffic to the GWLB endpoint based on the VPC route table configuration.2. Traffic is delivered securely and privately to the GWLB.3. The GWLB sends the traffic to a virtual appliance for inspection.4. Return traffic flows back to the GWLB endpoint and out to the internet through the internet gateway.

B : 1. An application in a spoke VPC sends traffic to the GWLB endpoint based on the VPC route table configuration.2. Traffic is delivered securely and privately to the GWLB endpoint.3. The GWLB sets the X-Forwarded-For request header and sends the traffic to a virtual appliance for inspection.4. Return traffic flows back to the GWLB and out to the internet through an internet gateway.

C : 1. An application in a spoke VPC sends traffic to the GWLB endpoint.2. Traffic is delivered securely and privately to the GWLB.3. The GWLB sets the X-Forwarded-For request header and sends the traffic to a virtual appliance for inspection.4. Return traffic flows back to the GWLB endpoint and out to the internet through the internet gateway.

D : 1. An application in a spoke VPC sends traffic to the GWLB.2. Traffic is delivered securely and privately to the GWLB endpoint.3. The GWLB sends the traffic to a virtual appliance for inspection.4. Return traffic flows back to the GWLB and out to the internet through an internet gateway.

Answer: A

Question 3

A company uses AWS Network Firewall to protect outgoing traffic for multiple VPCs that are in the same AWS account. Each VPC contains Amazon EC2 instances that host the company's applications. Each EC2 instance is tagged with the name of the application it hosts. The EC2 instances are in Auto Scaling groups. A Network Firewall stateful rule group must remain up-to-date, even when an Auto Scaling group launches and terminates EC2 instances. Which solution will meet this requirement with the LEAST implementation and administrative effort?

A : Create a network ACL for each application. Reference the network ACL in the stateful rule group.

B : Create a prefix list for each application. Reference the prefix list in the stateful rule group.

C : Create an AWS Lambda function that queries the EC2 instance tags for each application name and then updates the stateful rule group with the IP address of each instance.

D : Create a resource group for each application name. Reference the Amazon Resource Name (ARN) for the resource groups in the stateful rule group.

Answer: B

Question 4

Company A recently acquired Company B. Company A has a hybrid AWS and on-premises environment that uses a hosted AWS Direct Connect connection, a Direct Connect gateway, and a transit gateway. Company A has a transit VIF to access the resources in its production environment in the us-east-1 Region. Company B has applications that run across multiple VPCs in the us-west-2 Region in a single AWS account. A transit gateway connects all Company B's application VPCs. The CIDR blocks for both companies do not overlap. Company A needs to use the existing Direct Connect connection to access Company Bs applications from the on-premises environment. Which solution will meet these requirements?

A : Create a new Direct Connect gateway in the Company B account. Associate the Company B transit gateway with the new Direct Connect gateway. Create a transit VIF on the existing hosted connection for Company B.

B : Create an association proposal from the Company B account to associate the Company B transit gateway with the Company A Direct Connect gateway. Accept the transit gateway association proposal by logging into the Company A account.

C : Create multiple virtual private gateways. Attach the virtual private gateways to each of Company B's application VPCs. Create a hosted private VIF for each virtual private gateway.

D : Create a new Direct Connect gateway in the Company B account. Associate the Company B transit gateway with the new Direct Connect gateway. Create a hosted private VIF for Company B.

Answer: B

Question 5

A company has developed a web service for language translation. The web service's application runs on a fleet of Amazon EC2 instances that are in an Auto Scaling group. The instances run behind an Application Load Balancer (ALB) and are deployed in a private subnet. The web service can process requests that contain hundreds of megabytes of data. The company needs to give some customers the ability to access the web service. Each customer has its own AWS account. The company must make the web service accessible to approved customers without making the web service accessible to all customers. Which combination of steps will meet these requirements with the LEAST operational overhead? (Choose two.)

A : Create VPC peering connections with the approved customers only.

B : Create an AWS PrivateLink endpoint service. Configure the endpoint service to require acceptance that will be granted to approved customers only.

C : Configure an authentication action for the endpoint service's load balancer to allow customers to log in by using their AWS credentials. Provide only approved customers with the URL.

D : Configure a Network Load Balancer (NLB) and a listener with the ALB as a target. Associate the NLB with the endpoint service.

E : Associate the ALB with the endpoint service.

Answer: B,D