AWS Certified Advanced Networking – Specialty (ANS-C00) — Question 71

An architecture is being designed to support an Amazon WorkSpaces deployment of 1,000 desktops.
Which architecture will support this deployment while allowing for future expansion?

Answer options

• A. A VPC with a /16 CIDR and one /21 subnet
• B. A VPC with a /20 CIDR and two /21 subnets
• C. A VPC with a /16 CIDR and one /22 subnet
• D. A VPC with a /20 CIDR and two /23 subnets

Correct answer: B

Explanation

The correct answer is B because a VPC with a /20 CIDR and two /21 subnets provides enough IP addresses to support the 1,000 desktops and allows for future growth. Option A has insufficient subnets, while C and D do not provide enough address space for the current and future needs of the deployment.