Exam Professional-Cloud-DevOps-Engineer Topic 3 Question 89 Discussion

Actual exam question for Google's Professional-Cloud-DevOps-Engineer exam
Question #: 89
Topic #: 3
You recently deployed your application in Google Kubernetes Engine (GKE) and now need to release a new version of the application You need the ability to instantly roll back to the previous version of the application in case there are issues with the new version Which deployment model should you use?

Suggested Answer: D Vote an answer

The best deployment model for releasing a new version of your application in GKE with the ability to instantly roll back to the previous version is to perform a blue/green deployment and test your new application after the deployment is complete. A blue/green deployment is a deployment strategy that involves creating two identical environments, one running the current version of the application (blue) and one running the new version of the application (green). The traffic is switched from blue to green after testing the new version, and if any issues are discovered, the traffic can be switched back to blue instantly. This way, you can minimize downtime and risk during deployment.

by Christian at Sep 06, 2025, 11:01 PM

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