AWS Certified SysOps Administrator – Associate (SOA-C03) — Question 24

A company has an internal web application that runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group in a single Availability Zone. A CloudOps engineer must make the application highly available.
Which action should the CloudOps engineer take to meet this requirement?

Answer options

• A. Increase the maximum number of instances in the Auto Scaling group to meet the capacity that is required at peak usage.
• B. Increase the minimum number of instances in the Auto Scaling group to meet the capacity that is required at peak usage.
• C. Update the Auto Scaling group to launch new instances in a second Availability Zone in the same AWS Region.
• D. Update the Auto Scaling group to launch new instances in an Availability Zone in a second AWS Region.

Correct answer: C

Explanation

The correct answer is C because launching instances in a second Availability Zone within the same AWS Region improves the application's availability by providing redundancy. Options A and B only adjust the instance count without adding redundancy, while option D introduces a separate AWS Region, which is unnecessary for this requirement.