Google Professional-Cloud-Developer 問題集

質問 1：
You are using Cloud Build to create a new Docker image on each source code commit to a Cloud Source Repositoties repository. Your application is built on every commit to the master branch. You want to release specific commits made to the master branch in an automated method. What should you do?
A. Create a build trigger on a Git branch name pattern. Use a Git branch naming convention for new releases.
B. Create a build trigger on a Git tag pattern. Use a Git tag convention for new releases.
C. Manually trigger the build for new releases.
D. Commit your source code to a second Cloud Source Repositories repository with a second Cloud Build trigger. Use this repository for new releases only.
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 2：
You manage an ecommerce application that processes purchases from customers who can subsequently cancel or change those purchases. You discover that order volumes are highly variable and the backend order-processing system can only process one request at a time. You want to ensure seamless performance for customers regardless of usage volume. It is crucial that customers' order update requests are performed in the sequence in which they were generated. What should you do?
A. Send the purchase and change requests over WebSockets to the backend.
B. Use a Pub/Sub subscriber in pull mode and use a data store to manage ordering.
C. Send the purchase and change requests as REST requests to the backend.
D. Use a Pub/Sub subscriber in push mode and use a data store to manage ordering.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：
In order for HipLocal to store application state and meet their stated business requirements, which database service should they migrate to?
A. Cloud Memorystore as a cache
B. Separate Cloud SQL clusters for each region
C. Cloud Spanner
D. Cloud Datastore
正解：B

質問 4：
You are developing an application that consists of several microservices running in a Google Kubernetes Engine cluster. One microservice needs to connect to a third-party database running on-premises. You need to store credentials to the database and ensure that these credentials can be rotated while following security best practices. What should you do?
A. Configure a service mesh to allow or restrict traffic from the Pods in your microservice to the database.
B. Store the credentials in a sidecar container proxy, and use it to connect to the third-party database.
C. Store the credentials as a Kubernetes Secret, and use the Cloud Key Management Service plugin to handle encryption and decryption.
D. Store the credentials in an encrypted volume mount, and associate a Persistent Volume Claim with the client Pod.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 5：
Your team is setting up a build pipeline for an application that will run in Google Kubernetes Engine (GKE).
For security reasons, you only want images produced by the pipeline to be deployed to your GKE cluster.
Which combination of Google Cloud services should you use?
A. Cloud Build, Cloud Storage, and Binary Authorization
B. Google Cloud Deploy, Cloud Storage and Google Cloud Armor
C. Cloud Build. Artifact Registry and Binary Authorization
D. Google Cloud Deploy. Artifact Registry, and Google Cloud Armor
正解：D

質問 6：
HipLocal's APIs are showing occasional failures, but they cannot find a pattern.
They want to collect some metrics to help them troubleshoot.
What should they do?
A. Take frequent snapshots of all of the VMs.
B. Install the Stackdriver Logging agent on the VMs.
C. Use Stackdriver Trace to look for performance bottlenecks.
D. Install the Stackdriver Monitoring agent on the VMs.
正解：D

質問 7：
Your development team has built several Cloud Functions using Java along with corresponding integration and service tests. You are building and deploying the functions and launching the tests using Cloud Build.
Your Cloud Build job is reporting deployment failures immediately after successfully validating the code.
What should you do?
A. Check the maximum number of Cloud Function instances.
B. Retry the tests using the truncated exponential backoff polling strategy.
C. Verify that your Cloud Build trigger has the correct build parameters.
D. Verify that the Cloud Build service account is assigned the Cloud Functions Developer role.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 8：
For this question, refer to the HipLocal case study.
How should HipLocal increase their API development speed while continuing to provide the QA team with a stable testing environment that meets feature requirements?
A. Create health checks for the QA environment, and redeploy the APIs at a later time if the environment is unhealthy.
B. Redeploy the APIs to App Engine using Traffic Splitting. Do not move QA traffic to the new versions if errors are found.
C. Include unit tests in their code, and prevent deployments to QA until all tests have a passing status.
D. Include performance tests in their code, and prevent deployments to QA until all tests have a passing status.
正解：D

質問 9：
HipLocal wants to reduce the number of on-call engineers and eliminate manual scaling.
Which two services should they choose? (Choose two.)
A. Use Google Kubernetes Engine for automated deployments.
B. Use a large Google Compute Engine cluster for deployments.
C. Use Google App Engine services.
D. Use serverless Google Cloud Functions.
E. Use Knative to build and deploy serverless applications.
正解：D,E