Google Cloud Associate Cloud Engineer — Question 135

You have a Compute Engine instance hosting an application used between 9 AM and 6 PM on weekdays. You want to back up this instance daily for disaster recovery purposes. You want to keep the backups for 30 days. You want the Google-recommended solution with the least management overhead and the least number of services. What should you do?

Answer options

• A. 1. Update your instances' metadata to add the following value: snapshotג€"schedule: 0 1 * * * 2. Update your instances' metadata to add the following value: snapshotג€"retention: 30
• B. 1. In the Cloud Console, go to the Compute Engine Disks page and select your instance's disk. 2. In the Snapshot Schedule section, select Create Schedule and configure the following parameters: - Schedule frequency: Daily - Start time: 1:00 AM ג€" 2:00 AM - Autodelete snapshots after: 30 days
• C. 1. Create a Cloud Function that creates a snapshot of your instance's disk. 2. Create a Cloud Function that deletes snapshots that are older than 30 days. 3. Use Cloud Scheduler to trigger both Cloud Functions daily at 1:00 AM.
• D. 1. Create a bash script in the instance that copies the content of the disk to Cloud Storage. 2. Create a bash script in the instance that deletes data older than 30 days in the backup Cloud Storage bucket. 3. Configure the instance's crontab to execute these scripts daily at 1:00 AM.

Correct answer: B

Explanation

Option B is the correct choice as it utilizes the built-in Snapshot Schedule feature in the Cloud Console, providing an automated, Google-recommended approach that minimizes management effort. Options A, C, and D require more manual configuration and management of scripts or functions, making them less efficient for the stated requirements.