AWS Certified Advanced Networking – Specialty (ANS-C00) — Question 62

A team implements a highly available solution using Amazon AppStream 2.0. The AppStream 2.0 fleet needs to communicate with resources both in an existing
VPC and on-premises. The VPC is connected to the on-premises environment using an AWS Direct Connect private virtual interface.
What implementation enables on-premises users to connect to AppStream and existing VPC resources?

Answer options

• A. Deploy two subnets into the existing VPC. Add a public virtual interface to the Direct Connect connection for users to access the AppStream endpoint
• B. Deploy two subnets into the existing VPC. Add a private virtual interface on the Direct Connect connection for users to access the AppStream endpoint.
• C. Deploy a new VPC with two subnets. Create a VPC peering connection between the two VPCs for users to access the AppStream endpoint.
• D. Deploy one subnet into the existing VPC. Add a private virtual interface on the Direct Connect connection for users to access the AppStream endpoint.

Correct answer: A

Explanation

The correct answer is A, as deploying two subnets and adding a public virtual interface allows on-premises users to access the AppStream endpoint directly. Option B is incorrect because a private virtual interface would not facilitate access to public resources. Options C and D are not valid as they either create unnecessary complexity with a new VPC or do not provide the required connectivity with a single subnet.