Explain Workflow Management Concepts in CI AT0-001 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is the main goal of an automated rollback in a CI pipeline?

   • ATo automatically fix the code that caused the failure
   • BTo prevent any future deployments from occurring
   • CTo revert to a previous stable state when a deployment fails
   • DTo delete all logs of failed deployments
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2. 12expert · hard

   A CI pipeline is failing intermittently because a third-party API used in the integration tests is sometimes slow or unavailable. The team wants to make the pipeline more reliable. What is the best approach?

   • AUse a service virtualization tool to mock the third-party API in the integration tests.
   • BMove the integration tests to a separate pipeline that runs less frequently.
   • CIncrease the timeout for the integration tests to allow more time for the API to respond.
   • DRetry the integration test stage a few times before marking the pipeline as failed.
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4. 13application · medium

   A CI pipeline for a Java application uses Maven. The build step downloads dependencies from a central repository. Recently, the build has become slow because of network latency to the central repository. The team wants to speed up the build without changing the application code. What is the most effective solution?

   • ARun the build on a more powerful machine with a faster CPU.
   • BConfigure a local caching proxy for Maven dependencies and point the build to use it.
   • CIncrease the Maven build timeout to allow more time for downloads.
   • DRemove unused dependencies from the pom.xml file to reduce the number of downloads.
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5. 14application · medium

   A company's CI pipeline deploys a microservice to a Kubernetes cluster. The deployment uses a rolling update strategy. After a new version is deployed, the pipeline runs a set of post-deployment smoke tests. One of the smoke tests fails, indicating the new version is not functioning correctly. What is the best automated action for the pipeline to take?

   • AScale up the number of replicas for the new version to handle the failure.
   • BRerun the smoke tests a few more times to see if the failure is transient.
   • CLeave the deployment as-is and alert the on-call engineer to investigate.
   • DTrigger a rollback to the previous stable version of the microservice.
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6. 15foundation · easy

   In a CI pipeline, what is the role of a stage gate?

   • ATo automatically deploy code to production on every commit
   • BTo merge code branches automatically
   • CTo store logs of all pipeline runs
   • DTo block the pipeline from running if the previous stage failed
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