A user has configured Auto Scaling with 3 instances. The user had created a new AMI after updating one of the instances. If the user wants to terminate two specific instances to ensure that Auto Scaling launches an instances with the new launch configuration, which command should he run?

A user has configured Auto Scaling with 3 instances. The user had created a new AMI after updating one of the instances. If the user wants to terminate two specific instances to ensure that Auto Scaling launches an instances with the new launch configuration, which command should he run?
A . as-delete-instance-in-auto-scaling-group <Instance ID> –no-decrement-desired-capacity
B . as-terminate-instance-in-auto-scaling-group <Instance ID> –update-desired-capacity
C . as-terminate-instance-in-auto-scaling-group <Instance ID> –decrement-desired-capacity
D . as-terminate-instance-in-auto-scaling-group <Instance ID> –no-decrement-desired-capacity

View Answer

Answer: D

Explanation:

The Auto Scaling command as-terminate-instance-in-auto-scaling-group <Instance ID> will terminate the specific instance ID. The user is required to specify the parameter as Cno­decrement-desired-capacity to ensure that it launches a new instance from the launch config after terminating the instance. If the user specifies the parameter –decrement-desired-capacity, then Auto Scaling will terminate the instance and decrease the desired capacity by 1.