AWS Certified SysOps Administrator – Associate — Question 9

A SysOps administrator is notified that an Amazon EC2 instance has stopped responding. The AWS Management Console indicates that the system checks are failing.
What should the administrator do first to resolve this issue?

Answer options

• A. Reboot the EC2 instance so it can be launched on a new host.
• B. Stop and then start the EC2 instance so that it can be launched on a new host.
• C. Terminate the EC2 instance and relaunch it.
• D. View the AWS CloudTrail log to investigate what changed on the EC2 instance.

Correct answer: B

Explanation

The correct answer is B because stopping and then starting the EC2 instance allows it to be moved to a new host, which can resolve underlying hardware issues. Option A, while similar, does not ensure a new host is assigned because a reboot may keep the instance on the same hardware. Option C is more disruptive and not necessary as the instance may be recoverable. Option D does not address the immediate need to restore service.