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Answer: Decrease the cool-down period for instances added to the group., Decrease the target CPU usage for the instance group autoscaler.
The issue described involves the autoscaler not responding quickly enough to prevent latency spikes before new instances are fully operational. To address this, two key adjustments are recommended. First, decreasing the cool-down period (Option B) allows the autoscaler to initiate scaling actions more promptly, ensuring that additional instances are added sooner if the initial scaling action is insufficient. Second, lowering the target CPU usage (Option D) triggers the autoscaler to add instances earlier in the load increase cycle, preventing CPU utilization from reaching levels that could degrade performance. These changes together help maintain a more consistent latency experience for end users by ensuring that the autoscaler is both more responsive and proactive in scaling decisions.
Author: LeetQuiz Editorial Team
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Your Compute Engine instance group is set to autoscale based on overall CPU usage, but your application experiences significant latency spikes before new instances are fully added. To maintain more consistent latency for end users, which two autoscaler configuration changes should you implement? (Select two.)
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.
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