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GCP Associate Cloud Engineer Practice Question

Your team launched a Compute Engine VM two days ago but kept the default service account. The application running on the VM now needs to read objects from a Cloud Storage bucket. You have already created a new user-managed service account in the same project and granted that account the Storage Object Viewer role on the bucket. You want the running VM to begin using the new service account with minimal interruption and without changing the VM's external IP address. What should you do?

  • Run gcloud compute instances set-service-account INSTANCE --service-account NEW_SA_EMAIL while the VM is running; no restart is needed.

  • Generate a JSON key for the new service account, copy the key file to the VM, and set the GOOGLE_APPLICATION_CREDENTIALS environment variable.

  • Create an instance template using the new service account, then recreate the VM from that template and delete the original instance.

  • Add the Storage Object Viewer role to the VM's existing default Compute Engine service account; no further action is required.

GCP Associate Cloud Engineer
Configuring access and security
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