You need a dynamic way of provisioning VMs on Compute Engine. The exact specifications will be in a dedicated configuration file. You want to follow Google's recommended practices. Which method should you use?

• A.Managed Instance Group
• B.Unmanaged Instance Group
• C.Deployment Manager
• D.Cloud Composer

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You've been tasked with getting all of your team's public SSH keys onto all of the instances of a particular project. You've collected them all. With the fewest steps possible, what is the simplest way to get the keys deployed?

• A.Format all of the keys as needed and then, using the user interface, upload each key one at a time.
• B.Use the gcloud compute ssh command to upload all the keys
• C.Add all of the keys into a file that's formatted according to the requirements. Use the gcloud compute instances add-metadata command to upload the keys to each instance
• D.Add all of the keys into a file that's formatted according to the requirements. Use the gcloud compute project-info add-metadata command to upload the keys.

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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 a managed instance group. Set the Autohealing health check to healthy (HTTP)
• D.Create an HTTP load balancer with a backend configuration that references an existing instance group.
  Set the health check to healthy (HTTP)

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You developed a new application for App Engine and are ready to deploy it to production. You need to estimate the costs of running your application on Google Cloud Platform as accurately as possible. What should you do?

• A.Create a YAML file with the expected usage. Pass this file to the "gcloud app estimate" command to get an accurate estimation.
• B.Multiply the costs of your application when it was in development by the number of expected users to get an accurate estimation.
• C.Use the pricing calculator for App Engine to get an accurate estimation of the expected charges.
• D.Create a ticket with Google Cloud Billing Support to get an accurate estimation.

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You are hosting an application on bare-metal servers in your own data center. The application needs access to Cloud Storage. However, security policies prevent the servers hosting the application from having public IP addresses or access to the internet. You want to follow Google-recommended practices to provide the application with access to Cloud Storage. What should you do?

• A.1. Use nslookup to get the IP address for storage.googleapis.com.2. Negotiate with the security team to be able to give a public IP address to the servers.3. Only allow egress traffic from those servers to the IP addresses for storage.googleapis.com.
• B.1. Using Cloud VPN, create a VPN tunnel to a Virtual Private Cloud (VPC) in Google Cloud Platform (GCP).2. In this VPC, create a Compute Engine instance and install the Squid proxy server on this instance.3. Configure your servers to use that instance as a proxy to access Cloud Storage.
• C.1. Using Cloud VPN or Interconnect, create a tunnel to a VPC in GCP.2. Use Cloud Router to create a custom route advertisement for 199.36.153.4/30. Announce that network to your on-premises network through the VPN tunnel.3. In your on-premises network, configure your DNS server to resolve *.googleapis.com as a CNAME to restricted.googleapis.com.
• D.1. Use Migrate for Compute Engine (formerly known as Velostrata) to migrate those servers to Compute Engine.2. Create an internal load balancer (ILB) that uses storage.googleapis.com as backend.3. Configure your new instances to use this ILB as proxy.

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