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Answer: Use the Rolling Update feature to deploy/roll back versions with different managed instance group templates.
The correct answer is **D** because the Rolling Update feature allows for controlled updates to a subset of instances, ensuring high availability and the ability to rollback if issues arise. This method is integrated with managed instance groups, facilitating seamless deployments without the need for manual reconfiguration or additional setup for each update. Options A, B, and C are not as effective for managing updates and rollbacks in a scalable, automated manner. The Rolling Update feature specifically addresses the need for minimal disruption and automated rollback capabilities, making it the preferred choice for applications requiring high availability.
Author: LeetQuiz Editorial Team
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What is the preferred method for implementing a backup/rollback plan for an application distributed across a large managed instance group in Google Cloud?
A
Schedule a cron job to take snapshots of each instance in the group.
B
Use the managed instance group snapshot function that is included in Compute Engine.
C
Have each instance write critical application data to a Cloud Storage bucket.
D
Use the Rolling Update feature to deploy/roll back versions with different managed instance group templates.
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