Google Cloud Professional Cloud Developer — Question 52

You configured your Compute Engine instance group to scale automatically according to overall CPU usage. However, your application's response latency increases sharply before the cluster has finished adding up instances. You want to provide a more consistent latency experience for your end users by changing the configuration of the instance group autoscaler.
Which two configuration changes should you make? (Choose two.)

Answer options

• A. Add the label ג€AUTOSCALEג€ to the instance group template.
• B. Decrease the cool-down period for instances added to the group.
• C. Increase the target CPU usage for the instance group autoscaler.
• D. Decrease the target CPU usage for the instance group autoscaler.
• E. Remove the health-check for individual VMs in the instance group.

Correct answer: B, D

Explanation

Choosing option B, decreasing the cool-down period allows new instances to be utilized more quickly, which helps in managing latency. Option D, decreasing the target CPU usage, ensures that the autoscaler activates sooner, maintaining lower latency. The other options either do not directly address latency or could introduce unnecessary complications.