Google Professional Cloud Developer Question 306
Single answerGoogle Cloud PlatformYou are deploying a new feature for your application on Google Cloud. The feature is critical, but you want to minimize the risk of failure and gather user feedback before a full rollout. Which feature rollout strategy should you adopt?
- A
Blue/Green Deployment
- B
Canary Deployment
- C
Big Bang Release
- D
A/B Testing
Show answer and explanation
Correct answer: B
Explanation
Canary Deployment is the most appropriate strategy for rolling out critical features with minimal risk. It allows you to release the feature to a small subset of users, monitor its behavior, and incrementally expand the rollout if the feature performs as expected. This approach minimizes potential disruptions and provides opportunities for early feedback while maintaining the stability of the system.
- A. Incorrect.
Blue/Green Deployment involves running two separate environments (blue and green) where one serves all users while the other can be used for testing. However, it does not allow you to gradually roll out a feature and gather feedback from a subset of users.
- B. Correct.
Canary Deployment allows you to release the feature to a small subset of users first, monitor its performance, and gradually increase the rollout if no issues are found. This is ideal for minimizing risk and collecting feedback.
- C. Incorrect.
Big Bang Release involves launching a feature to all users at once, which does not minimize risk or allow incremental feedback. It is not suitable for critical features that require cautious rollout strategies.
- D. Incorrect.
A/B Testing is used to compare two versions of a feature or application to optimize performance or user experience, but it is not a rollout strategy designed to minimize risk or support gradual deployment.