AWS Certified SysOps Administrator – Associate — Question 60

A SysOps administrator creates a new VPC that includes a public subnet and a private subnet. The SysOps administrator successfully launches 11 Amazon EC2 instances in the private subnet. The SysOps administrator attempts to launch one more EC2 instance in the same subnet. However, the SysOps administrator receives an error message that states that not enough free IP addresses are available.

What must the SysOps administrator do to deploy more EC2 instances?

Answer options

• A. Edit the private subnet to change the CIDR block to /27.
• B. Edit the private subnet to extend across a second Availability Zone.
• C. Assign additional Elastic IP addresses to the private subnet.
• D. Create a new private subnet to hold the required EC2 instances.

Correct answer: D

Explanation

The correct answer is D because creating a new private subnet will provide more IP addresses to accommodate additional EC2 instances. Option A will not provide enough addresses as /27 has limited capacity, Option B does not address the current IP address limitation, and Option C is irrelevant since Elastic IPs are for public addresses, while private subnets rely on their own CIDR allocation.