You have a service running on Compute Engine virtual machine instances behind a global load balancer. You need to ensure that when the instance fails, it is recovered. What should you do?

Question

Options

• ASet up health checks in the load balancer configuration.
• BDeploy a service to the instances to notify you when they fail.
• CUse Stackdriver alerting to trigger a workflow to reboot the instance.
• DSet up health checks in the managed instance group configuration.

• A
  6% (3)
• B
  11% (5)
• C
  2% (1)
• D
  81% (38)

Explanation

A is not correct because the load balancer health check will not recover the instance. The load balancer health check will exclude the instance from receiving traffic. B is not correct because a service on the instance may not work when the instance fails. C is not correct because this is not the platform-idiomatic way of recovering failed instances. D is correct because the managed instance group health check will recreate the instance when it fails, and this is the platform-native way to satisfy this use case. https://cloud.google.com/compute/docs/instance-groups/creating-groups-of-managed- instances#monitoring_groups)

No community discussion yet for this question.