Your customer has implemented a solution that uses Cloud Spanner and notices some read latency-related performance issues on one table. This table is accessed only by their users using a primary key. The table schema is shown below.

You want to resolve the issue. What should you do?

• A.Option C
• B.Option A
• C.Option B
• D.Option D

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The core business of your company is to rent out construction equipment at a 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.Create a file in Cloud Storage per device and append new data to that file.
• B.Create a file in Cloud Filestore per device and append new data to that file.
• C.Ingest the data into Datastore. Store data in an entity group based on the device.
• D.Ingest the data into Cloud Bigtable. Create a row key based on the event timestamp.

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Your company implemented BigQuery as an enterprise data warehouse. Users from multiple business units run queries on this data warehouse. However, you notice that query costs for BigQuery are very high, and you need to control costs. Which two methods should you use? (Choose two.)

• A.Split the users from business units to multiple projects.
• B.Apply a user- or project-level custom query quota for BigQuery data warehouse.
• C.Create separate copies of your BigQuery data warehouse for each business unit.
• D.Split your BigQuery data warehouse into multiple data warehouses for each business unit.
• E.Change your BigQuery query model from on-demand to flat rate. Apply the appropriate number of slots to each Project.

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You need to create an autoscaling managed instance group for an HTTPS web application. You want to make sure that unhealthy VMs are recreated. What should you do?

• A.Create a health check on port 443 and use that when creating the Managed Instance Group.
• B.Select Multi-Zone instead of Single-Zone when creating the Managed Instance Group.
• C.In the Instance Template, add the label `health-check'.
• D.In the Instance Template, add a startup script that sends a heartbeat to the metadata server.

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You are setting up a Windows VM on Compute Engine and want to make sure you can log in to the VM via RDP. What should you do?

• A.After the VM has been created, use your Google Account credentials to log in into the VM.
• B.After the VM has been created, use gcloud compute reset-windows-password to retrieve the login credentials for the VM.
• C.When creating the VM, add metadata to the instance using `windows-password' as the key and a password as the value.
• D.After the VM has been created, download the JSON private key for the default Compute Engine service account. Use the credentials in the JSON file to log in to the VM.

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