You have a batch workload that runs every night and uses a large number of virtual machines (VMs). It is fault-tolerant and can tolerate some of the VMs being terminated. The current cost of VMs is too high.
What should you do?

• A. Run a test using N1 standard VMs instead of N2.
  If the test is successful, use N1 Standard VMs when running future jobs.
• B. Run a test using simulated maintenance events.
  If the test is successful, use preemptible N1 Standard VMs when running future jobs.
• C. Run a test using a managed instance group.
  If the test is successful, use N1 Standard VMs in the managed instance group when running future jobs.
• D. Run a test using simulated maintenance events.
  If the test is successful, use N1 Standard VMs when running future jobs.

Your company is running a critical workload on a single Compute Engine VM instance. Your company's disaster recovery policies require you to back up the entire instance's disk data every day. The backups must be retained for 7 days. You must configure a backup solution that complies with your company's security policies and requires minimal setup and configuration.
What should you do?

• A. Configure daily scheduled persistent disk snapshots with a retention period of 7 days.
• B. Configure a bash script using gsutil to run daily through a cron job. Copy the disk's files to a Cloud Storage bucket with archive storage class and an object lifecycle rule to delete the objects after 7 days.
• C. Configure the instance to use persistent disk asynchronous replication.
• D. Configure Cloud Scheduler to trigger a Cloud Function each day that creates a new machine image and deletes machine images that are older than 7 days.

The core business of your company is to rent out construction equipment at large scale. All the equipment that is being rented out has been equipped with multiple sensors that send event information every few seconds. These signals can vary from engine status, distance traveled, fuel level, and more. Customers are billed based on the consumption monitored by these sensors.
You expect high throughput - up to thousands of events per hour per device - and need to retrieve consistent data based on the time of the event. Storing and retrieving individual signals should be atomic. What should you do?

• A. Ingest the data into Bigtable. Create a row key based on the event timestamp.
• B. Ingest the data into Cloud SQL. Use multiple read replicas to match the throughput.
• C. Create a file in Filestore per device, and append new data to that file.
• D. Create files in Cloud Storage as data comes in.

Your company has embraced a hybrid cloud strategy where some of the applications are deployed on Google Cloud. A Virtual Private Network (VPN) tunnel connects your Virtual Private Cloud (VPC) in Google Cloud with your company's on-premises network. Multiple applications in Google Cloud need to connect to an on-premises database server, and you want to avoid having to change the IP configuration in all of your applications when the IP of the database changes.
What should you do?

• A. Create a private zone on Cloud DNS, and configure the applications with the DNS name.
• B. Configure the IP of the database as custom metadata for each instance,
• C. Configure Cloud NAT for all subnets of your VPC to be used when egressing from the VM instances.
• D. Query the Compute Engine internal DNS from the applications to retrieve the IP of the database.