Free Google Professional-Cloud-Developer Exam Questions

Question 1

Your application is deployed in a Google Kubernetes Engine (GKE) cluster. When a new version of your application is released, your CI/CD tool updates the spec.template.spec.containers[0].image value to reference the Docker image of your new application version. When the Deployment object applies the change, you want to deploy at least 1 replica of the new version and maintain the previous replicas until the new replica is healthy. Which change should you make to the GKE Deployment object shown below?

A : t the Deployment strategy to RollingUpdate with maxSurge set to 0, maxUnavailable set to 1.

B : t the Deployment strategy to RollingUpdate with maxSurge set to 1, maxUnavailable set to 0.

C : t the Deployment strategy to Recreate with maxSurge set to 0, maxUnavailable set to 1.

D : t the Deployment strategy to Recreate with maxSurge set to 1, maxUnavailable set to 0.

Answer: D

Question 2

You are using Cloud Run to host a global ecommerce web application. Your company’s design team is creating a new color scheme for the web app. You have been tasked with determining whether the new color scheme will increase sales. You want to conduct testing on live production traffic. How should you design the study?

A : an external HTTP(S) load balancer to route a predetermined percentage of traffic to two different color schemes of your application. Analyze the results to determine whether there is a statistically significant difference in sales.

B : an external HTTP(S) load balancer to route traffic to the original color scheme while the new deployment is created and tested. After testing is complete, reroute all traffic to the new color scheme. Analyze the results to determine whether there is a statistically significant difference in sales.

C : an external HTTP(S) load balancer to mirror traffic to the new version of your application. Analyze the results to determine whether there is a statistically significant difference in sales

D : able a feature flag that displays the new color scheme to half of all users. Monitor sales to see whether they increase for this group of users.

Answer: D

Question 3

Your application will be deployed on a Compute Engine instance that will communicate with Cloud SQL. In order to allow communication between the application and the database using the service account associated with the instance, you will use Cloud SQL Proxy. It is recommended by Google to provide minimum access for the role assigned to the service account, which you intend to follow as a best practice.

What actions do you recommend taking?

A : Assign the Project Editor role.

B : Assign the Cloud SQL Client role.

C : Assign the Project Owner role.

D : Assign the Cloud SQL Editor role.

Answer: B

Question 4

The analytics system is currently facing a permission error while executing queries against a BigQuery dataset. The SQL query is executed in batch by passing the contents of a SQL file to the BigQuery CLI, which in turn redirects the output to another process. To resolve this issue, you need to identify the root cause of the permission error and take necessary steps to fix it.

What actions are recommended in this situation?

A : Create a view in BigQuery from an SQL query and SELECT* from the view in the command-line interface.

B : Grant the service account BigQuery Data Editor and BigQuery Data Viewer roles.

C : Grant the service account BigQuery Data Viewer and BigQuery Job User roles.

D : Create a new dataset in BigQuery, copy the source table to the new dataset, and query the new dataset and table from the command-line interface.

Answer: C

Question 5

A CI/CD pipeline is being developed, which includes a version control system, Cloud Build, and Container Registry. Whenever a new tag is added to the repository, a Cloud Build job is activated. This job performs unit tests on the latest code, creates a new Docker container image, and saves it to the Container Registry. The final phase of the pipeline is to deploy the updated container to the production Google Kubernetes Engine (GKE) cluster.

What options are available to choose a tool and deployment strategy that satisfies these conditions:

• No downtime should be experienced

• Automated testing should be comprehensive

• Testing before release should be possible

• Quick rollbacks should be supported

A : Trigger a Spinnaker pipeline configured as an A/B test of your new code and, if successful, deploy the container to production.

B : Trigger a Cloud Build job that utilizes Kubernetes CLI tools to deploy your new container to your GKE cluster, allowing for a canary test.

C : Trigger a Cloud Build job that utilizes Kubernetes CLI tools to deploy your new container to your GKE cluster, allowing for a shadow test.

D : Trigger a Spinnaker pipeline configured as a canary test of your new code and, if successful, deploy the container to production.

Answer: C