Explanation:
A warm pool allows instances to be pre-initialized (with boot scripts run and software installed) and kept in a stopped or hibernated state. When a scale-out event occurs, these instances can be brought into service much faster than starting an instance from scratch, effectively reducing the impact of long-running boot scripts.
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Question 3. A company runs an application on Amazon EC2 instances that are in an Amazon EC2 Auto Scaling group. Scale-out actions take a long time to become complete because of long-running boot scripts. A SysOps administrator must implement a solution to reduce the required time for scale-out actions without overprovisioning the Auto Scaling group. Which solution will meet these requirements?
A
Change the launch configuration to use a larger instance size.
B
Increase the minimum number of instances in the Auto Scaling group.
C
Add a predictive scaling policy to the Auto Scaling group.
D
Add a warm pool to the Auto Scaling group.
E
Not Applicable
F
Not Applicable
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