Google Cloud Professional Cloud Architect — Question 121

Your company is designing its application landscape on Compute Engine. Whenever a zonal outage occurs, the application should be restored in another zone as quickly as possible with the latest application data. You need to design the solution to meet this requirement. What should you do?

Answer options

• A. Create a snapshot schedule for the disk containing the application data. Whenever a zonal outage occurs, use the latest snapshot to restore the disk in the same zone.
• B. Configure the Compute Engine instances with an instance template for the application, and use a regional persistent disk for the application data. Whenever a zonal outage occurs, use the instance template to spin up the application in another zone in the same region. Use the regional persistent disk for the application data.
• C. Create a snapshot schedule for the disk containing the application data. Whenever a zonal outage occurs, use the latest snapshot to restore the disk in another zone within the same region.
• D. Configure the Compute Engine instances with an instance template for the application, and use a regional persistent disk for the application data. Whenever a zonal outage occurs, use the instance template to spin up the application in another region. Use the regional persistent disk for the application data.

Correct answer: B

Explanation

The correct answer is B because it ensures that the application can be quickly restored in another zone within the same region using an instance template and regional persistent disk, which keeps the application data available. Option A does not fulfill the requirement of restoring in another zone and only focuses on the same zone. Option C also fails to utilize the instance template for quick recovery, and option D incorrectly suggests restoring in another region, which does not meet the requirement of restoring within the same region.