AWS Certified SysOps Administrator – Associate (SOA-C03) — Question 52

A company has a web application that is experiencing performance problems many times each night. A root cause analysis reveals sudden increases in CPU utilization that last 5 minutes on an Amazon EC2 Linux instance. A CloudOps engineer must find the process ID (PID) of the service or process that is consuming more CPU.
What should the CloudOps engineer do to collect the process utilization information with the LEAST amount of effort?

Answer options

• A. Configure the Amazon CloudWatch agent procstat plugin to capture CPU process metrics.
• B. Configure an AWS Lambda function to run every minute to capture the PID and send a notification.
• C. Log in to the EC2 instance by using a .pem key each night. Then run the top command.
• D. Use the default Amazon CloudWatch CPU utilization metric to capture the PID in CloudWatch.

Correct answer: A

Explanation

The correct answer, A, is effective as it utilizes the Amazon CloudWatch agent procstat plugin, which is specifically designed to capture detailed process metrics with minimal effort. Option B involves more complexity with Lambda function setup, option C requires manual intervention each night, and option D does not provide PID information, only overall CPU metrics.