2.3 Testing PROFESSIONAL-CLOUD-DEVELOPER Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is the primary benefit of running integration tests automatically in Cloud Build as part of a CI/CD pipeline?

   • AIt catches integration issues early, before they reach production
   • BIt guarantees that the application is free of all bugs
   • CIt eliminates the need for unit tests
   • DIt reduces the number of developers needed on the team
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2. 12foundation · easy

   In Cloud Build logs, what does a build step with an exit code of 1 typically indicate?

   • AThe step timed out
   • BThe step was skipped due to a condition
   • CThe step completed successfully
   • DThe step failed, and the build will be marked as failed
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4. 13application · medium

   A team is building a REST API that stores data in Firestore. They have unit tests for the request handlers that mock the Firestore client. Now they want to verify that the API correctly maps a Firestore document to the API response format. What should they do?

   • AWrite an integration test that uses the Firestore emulator to insert a document and then calls the API to verify the response.
   • BWrite a manual test script that the QA team runs against a staging environment.
   • CAdd more unit tests that mock Firestore with different document shapes.
   • DWrite a load test that sends many requests to the API to ensure it can handle the mapping under stress.
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5. 14application · medium

   A team's Cloud Build pipeline runs unit tests and then deploys to Cloud Run. They notice that a recent deployment was made even though the unit tests failed. Upon investigation, they find that the test step's command returns a zero exit code even when tests fail. What is the most likely cause?

   • AThe test results are being written to a file instead of the console, so Cloud Build cannot see them.
   • BThe Cloud Build step is using the wrong service account that does not have permission to run tests.
   • CThe test command is not configured to fail the build on test failure.
   • DThe deployment step is running before the test step in the cloudbuild.yaml.
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6. 15application · medium

   A team is writing unit tests for a service that sends a confirmation email after an order is placed. The service calls a third-party email API. The developer writes a test that directly invokes the service method and asserts that the email API was called with the correct payload. However, the test fails intermittently when the network is slow. What is the most likely cause of the flakiness?

   • AThe service method is not thread-safe and the test is running concurrently with other tests.
   • BThe test is not isolated from the external email API and is making a real network call.
   • CThe test is using the wrong assertion library for the email payload.
   • DThe test is running in parallel with other tests that share the same email API credentials.
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