Task Statement 1.2: Integrate Automated Testing into CI/CD Pipelines. DOP-C02 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   A DevOps engineer needs to run application tests across a fleet of EC2 instances to verify that the application behaves consistently in a distributed environment. Which approach is most appropriate?

   • ASkip testing in distributed environments to save time
   • BRun tests on a single EC2 instance and assume consistency
   • CRun tests only in a local development environment
   • DUse a test orchestration tool to distribute and run tests across multiple instances
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A DevOps engineer is writing the buildspec.yaml file for a CodeBuild project that runs a suite of automated tests. The test command is `./run-tests.sh`. The engineer wants the build to be marked as FAILED if the tests fail, and SUCCEEDED if they pass. What is the correct way to handle the exit code in the buildspec?

   • AAdd `set -e` to the buildspec so the build stops and fails on any non-zero exit code.
   • BAppend `|| true` to the test command to ensure the build always succeeds.
   • CWrap the test command in an `if` statement that prints a custom message but always exits with 0.
   • DCapture the exit code and manually call the CodeBuild API to update the build status.
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   A team wants to enforce a minimum code coverage threshold of 80% for all new code merged into their main branch. They use AWS CodeBuild for their CI pipeline. What is the most effective way to enforce this policy?

   • AAdd a build step that runs the test coverage tool and fails the build if coverage is below 80%.
   • BUse a Lambda function to monitor the repository and revert any commits that have coverage below 80%.
   • CRun the coverage tool and post the results as a comment on the pull request for developers to review manually.
   • DConfigure a CodePipeline approval action that requires a human to check the coverage report before deployment.
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A team is developing a REST API. They have comprehensive unit tests for the individual functions. They now want to add a test that verifies the API endpoints correctly handle requests and responses, including authentication and error handling, when deployed. What type of test should they add?

   • AAn integration test that makes real HTTP requests to the deployed API.
   • BA load test to measure the API's performance under concurrent users.
   • CA code coverage analysis to ensure all API routes are tested.
   • DA security scan to identify vulnerabilities in the API code.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   A DevOps engineer wants AWS CodeBuild to automatically run a build and test suite whenever a pull request is created in AWS CodeCommit. Which configuration should the engineer use?

   • ACreate a scheduled CloudWatch Events rule to run the build every minute
   • BConfigure a CodeBuild project with a webhook that triggers on PULL_REQUEST_CREATED events
   • CManually start the build after each pull request is created
   • DUse AWS CodeDeploy to trigger the build on pull requests
   Reveal Solution Discussion Select an answer first