Google Professional Cloud DevOps Engineer Question 234
Select 3Google Cloud PlatformYour team manages a critical e-commerce application on Google Cloud. During a peak sale event, a new code deployment causes a major outage, leading to users being unable to complete purchases. To mitigate the impact on users, what immediate actions should you take?
- A
Roll back the recent deployment to the last known stable version.
- B
Scale down the application instances to reduce operational costs during the outage.
- C
Enable a pre-configured maintenance page to notify users about the issue.
- D
Redirect traffic to a known healthy region or backup system.
- E
Conduct a full root cause analysis before restoring any services.
Show answer and explanation
Correct answers: A, C, D
Explanation
In incident management, the primary goal is to mitigate the impact on users as quickly as possible. Rolling back the unstable deployment, providing clear communication via a maintenance page, and redirecting traffic to a healthy system are all actions that directly address user impact. Root cause analysis and cost optimizations are secondary considerations that should be handled after user-facing issues are resolved.
- A. Correct.
Rolling back to the last known stable version is a standard practice to quickly restore functionality and mitigate user impact during an incident caused by a code change.
- B. Incorrect.
Scaling down the application instances during an outage does not help mitigate user impact and might even increase recovery time when scaling back up.
- C. Correct.
A maintenance page can help notify users of the issue and manage user expectations, reducing frustration while the issue is being resolved.
- D. Correct.
Redirecting traffic to a healthy region or backup system ensures continuity of service for users, minimizing the impact of the outage.
- E. Incorrect.
Conducting a root cause analysis is important but should be done after services are restored, as it does not immediately help mitigate user impact.