DevOps CI/CD Pipelines 3

Question 1

What does the DORA metric 'Lead Time for Changes' measure?

Accepted Answer

Time from code commit to running in production

Answer

Lead time for changes measures the elapsed time from a code commit to that code running successfully in production.

Question 2

In GitLab CI/CD, what file defines the pipeline configuration?

Accepted Answer

.gitlab-ci.yml

Answer

GitLab CI/CD reads its pipeline configuration from a `.gitlab-ci.yml` file stored at the root of the repository.

Question 3

What is a 'rolling deployment'?

Accepted Answer

Gradually replacing old instances with new ones in batches

Answer

A rolling deployment incrementally replaces running instances of an application with the new version in batches to minimize downtime.

Question 4

Which practice ensures that every code change passes automated tests before being merged?

Accepted Answer

Continuous Integration

Answer

Continuous Integration requires every code change to trigger an automated build and test run, failing the merge if tests do not pass.

Question 5

What is the purpose of a 'staging environment' in a CI/CD pipeline?

Accepted Answer

To provide a production-like environment for final testing before release

Answer

A staging environment mirrors production and is used for final integration testing, UAT, and smoke tests before a release goes live.

DevOps Practice Test