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Exam Professional Cloud Developer topic 1 question 306 discussion

Actual exam question from Google's Professional Cloud Developer
Question #: 306
Topic #: 1
[All Professional Cloud Developer Questions]

You need to deploy a new feature into production on Cloud Run. Your company’s SRE team mandates gradual deployments to avoid large downtimes caused by code change errors. You want to configure this deployment with minimal effort. What should you do?

  • A. Configure the application’s frontend load balancer to toggle between the new and old revisions.
  • B. Configure the application code to send a small percentage of users to the newly deployed revision.
  • C. Deploy the feature with “Serve this revision immediately” unchecked, and configure the new revision to serve a small percentage of traffic. Check for errors, and increase traffic to the revision as appropriate.
  • D. Deploy the feature with “Serve this revision immediately” checked. Check for errors, roll back to the previous revision, and repeat the process until you have verified that the deployment is bug-free.
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Suggested Answer: C 🗳️
by anshad666 at Oct. 12, 2024, 8:41 a.m.

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anshad666
1 month, 1 week ago
Selected Answer: C
By deploying the new feature with “Serve this revision immediately” unchecked, you can control how much traffic the new revision receives without fully switching over to it. Configuring a small percentage of traffic to go to the new revision allows for gradual testing in production with real users, minimizing the risk of downtime or large-scale errors. If no issues are encountered, you can gradually increase the traffic to the new revision until it fully replaces the old one.
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