Exam Professional Cloud DevOps Engineer topic 1 question 89 discussion

Actual exam question from Google's Professional Cloud DevOps Engineer

Question #: 89
Topic #: 1

[All Professional Cloud DevOps Engineer Questions]

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?

A. Perform a rolling deployment, and test your new application after the deployment is complete.
B. Perform A/B testing, and test your application periodically after the deployment is complete.
C. Perform a canary deployment, and test your new application periodically after the new version is deployed.
D. Perform a blue/green deployment, and test your new application after the deployment is complete.

Show Suggested Answer

Suggested Answer: D 🗳️

by ManishKS at Oct. 1, 2023, 8:30 a.m.

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alpha_canary

10 months, 2 weeks ago

Selected Answer: D

https://cloud.google.com/architecture/application-deployment-and-testing-strategies#key_benefits_3

upvoted 1 times

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PhuocT

1 year ago

Selected Answer: D

instantly roll back, so I think it's D

upvoted 2 times

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filipemotta

1 year ago

Selected Answer: D

his method involves deploying the new version of your application alongside the old version (two separate but identical environments: blue for the old version and green for the new one). You then switch traffic from blue to green. If any issues arise with the green environment (the new version), you can instantly route traffic back to the blue environment (the old version). This approach offers the fastest rollback mechanism as it merely involves a change in the traffic routing.

upvoted 1 times

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