How can this be accomplished?

An ecommerce company uses a large number of Amazon EBS backed Amazon EC2 instances. To decrease manual work across all the instances, a DevOps Engineer is tasked with automating restart actions when EC2 instance retirement events are scheduled.

How can this be accomplished?
A . Create a scheduled Amazon CloudWatch Events rule to execute an AWS Systems Manager automation document that checks if any EC2 instances are scheduled for retirement once a week. If the instance is scheduled for retirement, the automation document will hibernate the instance.
B . Enable EC2 Auto Recovery on all of the instances. Create an AWS Config rule to limit the recovery to occur during a maintenance window only.
C . Reboot all EC2 instances during an approved maintenance window that is outside of standard business hours. Set up Amazon CloudWatch alarms to send a notification in case any instance is failing EC2 instance status checks.
D . Set up an AWS Health Amazon CloudWatch Events rule to execute AWS Systems Manager automation documents that stop and start the EC2 instance when a retirement scheduled event occurs.

View Answer

Answer: D

Explanation:

Reference: https://aws.amazon.com/blogs/mt/automate-remediation-actions-for-amazon-ec2-notifications­and-beyond-using-ec2-systems-manager-automation-and-aws-health/