AWS Certified SysOps Administrator – Associate — Question 2

A company hosts a website on multiple Amazon EC2 instances that run in an Auto Scaling group. Users are reporting slow responses during peak times between
6 PM and 11 PM every weekend. A SysOps administrator must implement a solution to improve performance during these peak times.
What is the MOST operationally efficient solution that meets these requirements?

Answer options

• A. Create a scheduled Amazon EventBridge (Amazon CloudWatch Events) rule to invoke an AWS Lambda function to increase the desired capacity before peak times.
• B. Configure a scheduled scaling action with a recurrence option to change the desired capacity before and after peak times.
• C. Create a target tracking scaling policy to add more instances when memory utilization is above 70%.
• D. Configure the cooldown period for the Auto Scaling group to modify desired capacity before and after peak times.

Correct answer: B

Explanation

The correct answer is B because configuring a scheduled scaling action allows for automatic adjustments of capacity based on predictable peak times, ensuring optimal performance without manual intervention. Option A is less efficient as it relies on invoking a Lambda function, which adds complexity, while options C and D do not specifically address the scheduled nature of the peak demand.