A workflow has three jobs: 'lint', 'build', and 'test'. 'test' depends on 'build', but 'lint' is independent. The team wants to reduce the total workflow time. They also want to avoid running the workflow on documentation-only changes. Which combination of changes achieves both goals?

Combine 'lint' and 'build' into a single job, and use a larger runner.

Add a path filter to skip documentation changes, and use a matrix for the 'test' job to run test suites in parallel.

Use concurrency control to cancel in-progress runs, and increase the timeout-minutes.

Use a matrix for the 'build' job, and disable the 'lint' job.

How does using a smaller runner type (e.g., 2-core instead of 8-core) affect GitHub Actions cost?

It always reduces cost regardless of job requirements

It increases cost because jobs take longer

It reduces cost per minute, potentially lowering total cost if the job completes within the same time

A repository's workflow uploads a large build artifact (500 MB) on every push. The team rarely needs artifacts older than a week, but the default retention period is 90 days. Storage costs are rising. What should they do to reduce storage costs while still keeping recent artifacts available?

Set the artifact retention period to 7 days in the repository settings.

Disable artifact upload in the workflow.

Delete the workflow run after each push using the REST API.

Increase the retention period to 180 days to ensure artifacts are never lost.

What is a common bottleneck in GitHub Actions workflows that can be addressed by using caching?

High CPU usage from parallel jobs

Slow network due to large file downloads

A workflow has two jobs: 'build' and 'test'. The 'test' job depends on the 'build' job. The team wants to reduce the total workflow time. Which change would help?

Split the 'test' job into multiple jobs that run in parallel.

Increase the timeout-minutes for the 'test' job.

Combine 'build' and 'test' into a single job.

Use the `needs` keyword to ensure 'test' runs after 'build' completes.

GitHubActions Certification

Domain 5Objective 2

Optimize Workflow Performance and Cost GH-200 Practice Questions (Page 1)

Part of the Secure and optimize automation domain, which accounts for 10-15% of the GH-200 exam.

24questions here

5free pages

6concepts

10-15%of the exam

Questions 1–5

1expert · hard
A workflow has three jobs: 'lint', 'build', and 'test'. 'test' depends on 'build', but 'lint' is independent. The team wants to reduce the total workflow time. They also want to avoid running the workflow on documentation-only changes. Which combination of changes achieves both goals?
Select an answer first
2foundation · easy
How does using a smaller runner type (e.g., 2-core instead of 8-core) affect GitHub Actions cost?
Select an answer first
3application · medium
A repository's workflow uploads a large build artifact (500 MB) on every push. The team rarely needs artifacts older than a week, but the default retention period is 90 days. Storage costs are rising. What should they do to reduce storage costs while still keeping recent artifacts available?
Select an answer first
4foundation · easy
What is a common bottleneck in GitHub Actions workflows that can be addressed by using caching?
Select an answer first
5application · medium
A workflow has two jobs: 'build' and 'test'. The 'test' job depends on the 'build' job. The team wants to reduce the total workflow time. Which change would help?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to GH-200

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by GitHub. “GH-200” is a trademark of its owner, used for identification only.