Google Cloud Associate Cloud Engineer — Question 154

You are hosting an application from Compute Engine virtual machines (VMs) in us`"central1`"a. You want to adjust your design to support the failure of a single
Compute Engine zone, eliminate downtime, and minimize cost. What should you do?

Answer options

• A. ג€" Create Compute Engine resources in usג€"central1ג€"b. ג€" Balance the load across both usג€"central1ג€"a and usג€"central1ג€"b.
• B. ג€" Create a Managed Instance Group and specify usג€"central1ג€"a as the zone. ג€" Configure the Health Check with a short Health Interval.
• C. ג€" Create an HTTP(S) Load Balancer. ג€" Create one or more global forwarding rules to direct traffic to your VMs.
• D. ג€" Perform regular backups of your application. ג€" Create a Cloud Monitoring Alert and be notified if your application becomes unavailable. ג€" Restore from backups when notified.

Correct answer: A

Explanation

The correct answer is A because creating resources in another zone and balancing the load across both zones provides redundancy, which ensures that if one zone fails, the application can still function. Option B only utilizes a single zone, which does not protect against zone failure, while options C and D focus on traffic management and backup strategies, respectively, but do not address zone redundancy directly.