You built an application on your development laptop that uses Google Cloud services. Your application uses Application Default Credentials for authentication and works fine on your development laptop. You want to migrate this application to a Compute Engine virtual machine (VM) and set up authentication using Google- recommended practices and minimal changes. What should you do?

• A.Assign appropriate access for Google services to the service account used by the Compute Engine VM.
• B.Create a service account with appropriate access for Google services, and configure the application to use this account.
• C.Store credentials for service accounts with appropriate access for Google services in a config file, and deploy this config file with your application.
• D.Store credentials for your user account with appropriate access for Google services in a config file, and deploy this config file with your application.

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You have downloaded and installed the gcloud command line interface (CLI) and have authenticated with your Google Account. Most of your Compute Engine instances in your project run in the europe-west1-d zone. You want to avoid having to specify this zone with each CLI command when managing these instances. What should you do?

• A.Set the europe-west1-d zone as the default zone using the gcloud config subcommand.
• B.In the Settings page for Compute Engine under Default location, set the zone to europe-west1-d.
• C.In the CLI installation directory, create a file called default.conf containing zone=europe-west1-d.
• D.Create a Metadata entry on the Compute Engine page with key compute/zone and value europe-west1-d.

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You need to create a copy of a custom Compute Engine virtual machine (VM) to facilitate an expected increase in application traffic due to a business acquisition. What should you do?

• A.Create a Compute Engine snapshot of your base VM.
  Create your images from that snapshot.
• B.Create a Compute Engine snapshot of your base VM.
  Create your instances from that snapshot.
• C.Create a custom Compute Engine image from a snapshot.
  Create your images from that image.
• D.Create a custom Compute Engine image from a snapshot.
  Create your instances from that image.

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You want to configure autohealing for network load balancing for a group of Compute Engine instances that run in multiple zones, using the fewest possible steps. You need to configure re-creation of VMs if they are unresponsive after 3 attempts of 10 seconds each. What should you do?

• A.Create a managed instance group. Verify that the autoscaling setting is on.
• B.Create an HTTP load balancer with a backend configuration that references an existing instance group.
  Define a balancing mode and set the maximum RPS to 10.
• C.Create an HTTP load balancer with a backend configuration that references an existing instance group.
  Set the health check to healthy (HTTP).
• D.Create a managed instance group. Set the Autohealing health check to healthy (HTTP).

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You are building an application that stores relational data from users. Users across the globe will use this application. Your CTO is concerned about the scaling requirements because the size of the user base is unknown. You need to implement a database solution that can scale with your user growth with minimum configuration changes. Which storage solution should you use?

• A.Cloud SQL
• B.Cloud Spanner
• C.Cloud Firestore
• D.Cloud Datastore

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