Google Professional Cloud Developer Exam Practice Test Instant Access

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?

ASet the Deployment strategy to RollingUpdate with maxSurge set to 0, maxUnavailable set to 1.

BSet the Deployment strategy to RollingUpdate with maxSurge set to 1, maxUnavailable set to 0.

CSet the Deployment strategy to Recreate with maxSurge set to 0, maxUnavailable set to 1.

DSet the Deployment strategy to Recreate with maxSurge set to 1, maxUnavailable set to 0.

Answer : D

Question 2

You are designing an application that uses a microservices architecture. You are planning to deploy the application in the cloud and on-premises. You want to make sure the application can scale up on demand and also use managed services as much as possible. What should you do?

ADeploy open source Istio in a multi-cluster deployment on multiple Google Kubernetes Engine (GKE) clusters managed by Anthos.

BCreate a GKE cluster in each environment with Anthos, and use Cloud Run for Anthos to deploy your application to each cluster.

CInstall a GKE cluster in each environment with Anthos, and use Cloud Build to create a Deployment for your application in each cluster.

DCreate a GKE cluster in the cloud and install open-source Kubernetes on-premises. Use an external load balancer service to distribute traffic across the two environments.

Answer : B

https://cloud.google.com/anthos/run

Integrated with Anthos, Cloud Run for Anthos provides a flexible serverless development platform for hybrid and multicloud environments. Cloud Run for Anthos is Google's managed and fully supported Knative offering, an open source project that enables serverless workloads on Kubernetes.

Question 3

HipLocal wants to reduce the number of on-call engineers and eliminate manual scaling.

Which two services should they choose? (Choose two.)

AUse Google App Engine services.

BUse serverless Google Cloud Functions.

CUse Knative to build and deploy serverless applications.

DUse Google Kubernetes Engine for automated deployments.

EUse a large Google Compute Engine cluster for deployments.

Answer : B, C

Question 4

Your data is stored in Cloud Storage buckets. Fellow developers have reported that data downloaded from Cloud Storage is resulting in slow API performance. You want to research the issue to provide details to the GCP support team. Which command should you run?

Agsutil test --o output.json gs://my-bucket

Bgsutil perfdiag --o output.json gs://my-bucket

Cgcloud compute scp example-instance:~/test-data --o output.json gs://my-bucket

Dgcloud services test --o output.json gs://my-bucket

Answer : B

Question 5

You configured your Compute Engine instance group to scale automatically according to overall CPU usage. However, your application's response latency increases sharply before the cluster has finished adding up instances. You want to provide a more consistent latency experience for your end users by changing the configuration ot the instance group autoscaler. Which two configuration changes should you make? (Choose two.)

AAdd the label ''AUTOSCALE'' to the instance group template.

BDecrease the cool-down period for instances added to the group.

CIncrease the target CPU usage for the instance group autoscaler.

DDecrease the target CPU usage for the instance group autoscaler.

ERemove the health-check for individual VMs in the instance group.

Answer : A, C

Question 6

Your team develops services that run on Google Cloud. You want to process messages sent to a Pub/Sub topic, and then store them. Each message must be processed exactly once to avoid duplication of data and any data conflicts. You need to use the cheapest and most simple solution. What should you do?

AProcess the messages with a Dataproc job, and write the output to storage.

BProcess the messages with a Dataflow streaming pipeline using Apache Beam's PubSubIO package, and write the output to storage.

CProcess the messages with a Cloud Function, and write the results to a BigQuery location where you can run a job to deduplicate the data.

DRetrieve the messages with a Dataflow streaming pipeline, store them in Cloud Bigtable, and use another Dataflow streaming pipeline to deduplicate messages.

Answer : B

https://cloud.google.com/dataflow/docs/concepts/streaming-with-cloud-pubsub

Question 7

Users are complaining that your Cloud Run-hosted website responds too slowly during traffic spikes. You want to provide a better user experience during traffic peaks. What should you do?

ARead application configuration and static data from the database on application startup.

BPackage application configuration and static data into the application image during build time.

CPerform as much work as possible in the background after the response has been returned to the user.

DEnsure that timeout exceptions and errors cause the Cloud Run instance to exit quickly so a replacement instance can be started.

Answer : C