AWS Certified SysOps Administrator – Associate — Question 1

A company has an infernal 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 SysOps administrator must make the application highly available.
Which action should the SysOps administrator 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 deploying new instances in a second Availability Zone within the same AWS Region increases the application's availability by providing redundancy. Options A and B do not address high availability, as they only adjust the number of instances within a single Availability Zone. Option D would not improve availability as it involves a different AWS Region, which could increase latency and complexity.