AWS Certified SysOps Administrator – Associate (legacy) — Question 328

A user has launched an EC2 Windows instance from an instance store backed AMI. The user has also set the Instance initiated shutdown behavior to stop. What will happen when the user shuts down the OS?

Answer options

• A. It will not allow the user to shutdown the OS when the shutdown behavior is set to Stop
• B. It is not possible to set the termination behavior to Stop for an Instance store backed AMI instance
• C. The instance will stay running but the OS will be shutdown
• D. The instance will be terminated

Correct answer: B

Explanation

Amazon EC2 instances backed by instance store volumes do not support the Stop state because their root volume storage is ephemeral. Consequently, AWS does not allow the instance-initiated shutdown behavior to be set to Stop for these instances, limiting the options to Terminate or No Action. Therefore, configuring this behavior to Stop is not possible in the first place.