Exam AWS Certified SysOps Administrator - Associate topic 1 question 353 discussion

It's D. Warm pools are used to have a group of instances already booted in stand-by to avoid initial scripts delay.

A - does not directly address the issue of long-running boot scripts, which is the primary cause of the slow scale-out actions. B - lead to overprovisioning, which the requirement explicitly wants to avoid. C - does not directly reduce the time required for the instances to become operational once they are launched. D: Warm pools allow you to maintain a pool of pre-initialized instances that are ready to go online quickly. These instances have already completed their boot scripts and initialization, so when a scale-out action is triggered, the instances can be brought online much faster. This solution directly addresses the issue of long-running boot scripts and reduces the time required for scale-out actions without overprovisioning the Auto Scaling group.

warm pools do not directly address the issue of reducing the required time for scale-out actions caused by long-running boot scripts. Warm pools can help with quicker scaling by having pre-initialized instances, but they do not optimize the scaling process or reduce the impact of boot scripts during scale-out. The correct approach to address the issue of long-running boot scripts and reduce the time for scale-out actions is to use predictive scaling, which is achieved through option C

D. Add a warm pool to the Auto Scaling group.

D is answer

D it is

need warm pool to a quick scale out

warm pools contain instances that are already past boot scripts and have fully loaded the OS