You need to manage a Cloud Spanner Instance for best query performance. Your instance in production runs in a single Google Cloud region. You need to improve performance in the shortest amount of time. You want
to follow Google best practices for service configuration. What should you do?

1. A. Create an alert in Cloud Monitoring to alert when the percentage of high priority CPU utilization reaches 45% If you exceed this threshold, add nodes lo your instance.
2. B. Create an alert in Cloud Monitoring to alert when the percentage ot high priority CPU utilization reaches 45% Use database query statistics to identify queries that result in high CPU usage, and then rewrite those queries to optimize their resource usage
3. C. Create an alert in Cloud Monitoring to alert when the percentage of high priority CPU utilization reaches 65% If you exceed this threshold, add nodes to your instance
4. D. Create an alert in Cloud Monitoring to alert when the percentage of high priority CPU utilization reaches 65%. Use database query statistics to identity queries that result in high CPU usage, and then rewrite those queries to optimize their resource usage.

Correct Answer: C
https://cloud.google.com/spanner/docs/cpu-utilization#recommended-max

You have deployed an application on a single Compute Engine instance. The application writes logs to disk. Users start reporting errors with the application. You want to diagnose the problem. What should you do?

1. A. Navigate to Cloud Logging and view the application logs.
2. B. Connect to the instance’s serial console and read the application logs.
3. C. Configure a Health Check on the instance and set a Low Healthy Threshold value.
4. D. Install and configure the Cloud Logging Agent and view the logs from Cloud Logging.

Correct Answer: D

Your web application has been running successfully on Cloud Run for Anthos. You want to evaluate an updated version of the application with a specific percentage of your production users (canary deployment). What should you do?

1. A. Create a new service with the new version of the applicatio
2. B. Split traffic between this version and the version that is currently running.
3. C. Create a new revision with the new version of the applicatio
4. D. Split traffic between this version and the version that is currently running.
5. E. Create a new service with the new version of the applicatio
6. F. Add an HTTP Load Balancer in front of both services.
7. G. Create a new revision with the new version of the applicatio
8. H. Add an HTTP Load Balancer in front of both revisions.

Correct Answer: B
https://cloud.google.com/kuberun/docs/rollouts-rollbacks-traffic-migration

You will have several applications running on different Compute Engine instances in the same project. You want to specify at a more granular level the service account each instance uses when calling Google Cloud APIs. What should you do?

1. A. When creating the instances, specify a Service Account for each instance
2. B. When creating the instances, assign the name of each Service Account as instance metadata
3. C. After starting the instances, use gcloud compute instances update to specify a Service Account for each instance
4. D. After starting the instances, use gcloud compute instances update to assign the name of the relevant Service Account as instance metadata

Correct Answer: A
https://cloud.google.com/compute/docs/access/service-accounts#associating_a_service_account_to_an_instance

You have designed a solution on Google Cloud Platform (GCP) that uses multiple GCP products. Your company has asked you to estimate the costs of the solution. You need to provide estimates for the monthly total cost. What should you do?

1. A. For each GCP product in the solution, review the pricing details on the products pricing pag
2. B. Use the pricing calculator to total the monthly costs for each GCP product.
3. C. For each GCP product in the solution, review the pricing details on the products pricing pag
4. D. Create a Google Sheet that summarizes the expected monthly costs for each product.
5. E. Provision the solution on GC
6. F. Leave the solution provisioned for 1 wee
7. G. Navigate to the Billing Report page in the Google Cloud Platform Consol
8. H. Multiply the 1 week cost to determine the monthly costs.
9. I. Provision the solution on GC
10. J. Leave the solution provisioned for 1 wee
11. K. Use Stackdriver to determine the provisioned and used resource amount
12. L. Multiply the 1 week cost to determine the monthly costs.

Correct Answer: A
You can use the Google Cloud Pricing Calculator to total the estimated monthly costs for each GCP product. You dont incur any charges for doing so.
Ref: https://cloud.google.com/products/calculator