In your organization, an application team sets up an autoscaling group configuration (with a simple scaling policy) to launch a new instance when CPU utilization reaches 85%. However, at times, when the EC2 instance comes into in-service, it reports Unhealthy status immediately. As the replacement of the unhealthy instance by another instance (launched by the Autoscaling group) takes more than 15 minutes, the unhealthy instance has to be removed manually. What do you think is the reason behind this?

Answer options:

A.Auto scaling policy alarm incorrectly configured.
B.Health Check Grace Period set to 20 minutes.
C.Termination policy set to Do Not Terminate instances.
D.Launch Configuration is not configured to report Unhealthy status

Answer: B
Option A is incorrect because the Instance health status is not determined by the CloudWatch alarms.
 Option B is correct.
Option C is incorrect because the termination policy does not have a “Do Not Terminate” option.
Option D is not a correct statement.