Continuous Integration Tools DSE Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A team is using Jenkins and wants to implement a pipeline that builds, tests, and deploys to a staging environment. They want to ensure that the deployment to staging only happens if the tests pass, and they want to be able to manually approve the deployment to production. Which Jenkins feature should they use?

   • AUse a separate Jenkins job for production deployment and trigger it automatically after the staging job succeeds.
   • BUse a declarative pipeline with stages and a 'input' step to wait for manual approval before the production deployment stage.
   • CUse a 'post' action in the pipeline to deploy to production if the build is successful.
   • DUse a scripted pipeline with a 'timeout' step to wait for a certain amount of time before deploying to production.
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2. 2application · medium

   A financial services company is adopting CI for a Java application. They must ensure that no build artifact with known critical vulnerabilities is deployed. They want to integrate security scanning into the pipeline so that the build fails if a critical vulnerability is found. Which approach should they implement?

   • ARun a vulnerability scan only on the final release candidate, just before deployment.
   • BAdd a stage that runs a SAST tool and a dependency scanner, and fail the pipeline if any critical vulnerability is reported.
   • CConfigure the CI tool to automatically fix all vulnerabilities found in the code before proceeding with the build.
   • DUse a container image scanner on the Docker image after the build, but only report the results without failing the build.
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4. 3expert · hard

   A team is experiencing flaky tests in their CI pipeline, causing builds to fail intermittently. They want to improve the reliability of the pipeline. Which practice is most effective?

   • ARun the tests in a different order each time to distribute the load.
   • BIdentify and fix the root cause of flaky tests, and use test retries as a temporary measure.
   • CDisable the flaky tests to keep the pipeline green.
   • DIncrease the timeout for each test to allow more time for slow tests.
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5. 4foundation · easy

   Which practice is considered a best practice for continuous integration?

   • AUsing a separate build machine for each developer
   • BCommitting code to the main branch infrequently
   • CKeeping the build broken for several days
   • DRunning builds and tests on every commit
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6. 5foundation · easy

   What is the purpose of configuring a CI tool to run automated tests after a successful build?

   • ATo validate that the code behaves as expected
   • BTo generate documentation for the code
   • CTo ensure the code compiles correctly
   • DTo deploy the application to production
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