You are about to perform a major software upgrade on a critical Compute Engine instance. You want to ensure you can quickly revert to the current state if the upgrade fails.

What should you do FIRST?

Answer options:

Create a custom image from the instance.

Take a snapshot of the instance's persistent disk.

Export the disk to a Cloud Storage bucket.

Enable auto-healing on the instance.

How to approach this question

Identify the standard backup mechanism for Compute Engine disks.

Full Answer

B.Take a snapshot of the instance's persistent disk.✓ Correct

Take a snapshot of the instance's persistent disk.

A persistent disk snapshot is a point-in-time backup of the data on your disk. Taking a snapshot before a risky operation (like an OS upgrade) is a best practice. If something goes wrong, you can create a new disk from the snapshot and attach it to the VM, effectively rolling back the changes.

Common mistakes

Confusing Images and Snapshots. Images are for deployment (bootstrapping new VMs); Snapshots are for backup and recovery.

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Practice the full GCP Associate Cloud Engineer Practice Exam 7

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