About This Flashcard Deck
This flashcard deck contains 10 cards covering key GitHub Actions concepts for the GH-ACTIONS exam. Test your GitHub Actions knowledge. Use active recall by attempting to answer each question before revealing the answer.
Question
What are the three types of custom actions?
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Answer
JavaScript (Node.js, fastest startup), Docker container (any language, isolated), Composite (combines steps from multiple actions).
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All GitHub Actions Flashcards
Q: What are the three types of custom actions?
A: JavaScript (Node.js, fastest startup), Docker container (any language, isolated), Composite (combines steps from multiple actions).
Q: What is GITHUB_TOKEN?
A: Automatically generated token scoped to the repository. Default permissions configurable. Used for API calls in workflows.
Q: What is a matrix strategy?
A: Runs a job multiple times with different configurations (e.g., multiple Node versions, OS). strategy: matrix: node: [16, 18, 20].
Q: What is workflow_dispatch?
A: Trigger that allows manually running a workflow from the GitHub UI with optional input parameters.
Q: What is OIDC in GitHub Actions?
A: OpenID Connect — allows workflows to authenticate with cloud providers (AWS, Azure, GCP) without storing long-lived credentials.
Q: What is an artifact in Actions?
A: Files produced by a workflow (build output, test results) that can be shared between jobs or downloaded after the run.
Q: What is a reusable workflow?
A: A workflow that can be called from other workflows using workflow_call trigger. Promotes DRY principles across repositories.
Q: What is the difference between env and secrets?
A: env: plain text, visible in logs. secrets: encrypted, masked in logs, set in repo/org settings.
Q: How do you run jobs sequentially?
A: Use needs: keyword. Example: needs: [build] makes a job wait for the build job to complete.
Q: What is a self-hosted runner?
A: A machine you manage that runs GitHub Actions jobs. Used for custom hardware, software, or network access requirements.
GitHub Flashcard Study Method
GitHub certifications test platform-specific knowledge that you can verify immediately. When reviewing these flashcards, keep a browser tab open to github.com and verify each concept in real time. If a card covers branch protection rules, navigate to a repository's settings and explore the options. This active learning approach turns passive memorisation into practical experience that sticks for the exam.