Practice Test 3 | Google Cloud Certified Professional Cloud Architect | Dumps | Mock Test
You need to have a backup/rollback plan in place for your application that is distributed across a large managed instance group. What is the preferred method for doing so?
A. Use the Rolling Update feature to deploy/roll back versions with different managed instance group templates.
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. Schedule a cron job to take snapshots of each instance in the group.
Correct Answer A
Explanation
Individual VM’s in a managed instance group should be treated as disposable entities and should not be individually backed up. Using the rolling update feature in your managed instance group allows you to use alternate managed instance templates for managing different versions of your application.
https://cloud.google.com/compute/docs/instance-groups/updating-managed-instance-groups
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