Answer-first summary for fast verification
Answer: Roll back the recent release.
The question involves mitigating user impact due to latency at login after a new feature release. The priority is to quickly restore service stability. Option A (roll back the recent release) is the best first step because the issue coincided with the new release, suggesting it is the likely cause. Rolling back reverts to a known stable state, minimizing user disruption immediately. Option B (review Stackdriver monitoring) is diagnostic but doesn't address the impact directly. Option C (upsize VMs) assumes a resource issue without evidence and takes time. Option D (deploy a new release) risks exacerbating the problem. Thus, rolling back is the fastest, lowest-risk mitigation.
Author: LeetQuiz Editorial Team
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You manage a web application hosted on Compute Engine that offers a booking service to thousands of users. After deploying a new feature, your monitoring dashboard indicates all users are encountering login latency. What is the first action you should take to minimize the impact of this incident on your service's users?
A
Roll back the recent release.
B
Review the Stackdriver monitoring.
C
Upsize the virtual machines running the login services.
D
Deploy a new release to see whether it fixes the problem.
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