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PROFESSIONAL-CLOUD-DEVOPS-ENGINEER · Question #74

PROFESSIONAL-CLOUD-DEVOPS-ENGINEER Question #74: Real Exam Question with Answer & Explanation

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Submitted by tunde_lagos· Apr 18, 2026Managing a service incident

Question

You manage an application that runs in Google Kubernetes Engine (GKE) and uses the blue/green deployment methodology. Extracts of the Kubernetes manifests are shown below: The Deployment app-green was updated to use the new version of the application. During post- deployment monitoring, you notice that the majority of user requests are failing. You did not observe this behavior in the testing environment. You need to mitigate the incident impact on users and enable the developers to troubleshoot the issue. What should you do?

Options

  • AUpdate the Deployment app-blue to use the new version of the application.
  • BUpdate the Deployment app-green to use the previous version of the application.
  • CChange the selector on the Service app-svc to app: my-app.
  • DChange the selector on the Service app-svc to app: my-app, version: blue.

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Topics

#Kubernetes#Blue/Green Deployment#Incident Response#Service Rollback
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