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| Certification Vendor: | Microsoft / GitHub |
|---|---|
| Exam Name: | GitHub Actions Exam |
| Exam Number: | GH-200 |
| Exam Format: | Multiple response, Scenario-based questions, Multiple choice |
| Related Certifications: | GitHub Copilot GitHub Advanced Security GitHub Foundations |
| Available Languages: | English |
| Exam Duration: | 120 minutes |
| Recommended Training: | GitHub Skills - Actions courses Microsoft Learn: GitHub Actions learning paths |
| Exam Registration: | Microsoft Learn Certification Page GH-200 Study Guide |
| Sample Questions: | Microsoft GH-200 Sample Questions |
| Exam Way: | Online proctored (Pearson VUE / Microsoft Learn credentialing system) |
| Pre Condition: | Recommended: intermediate experience with GitHub, CI/CD, and GitHub Actions workflows; familiarity with YAML and DevOps concepts |
| Official Syllabus URL: | https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/gh-200 |
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NEW QUESTION # 125
Which of the following is the best way for an enterprise to prevent certain marketplace actions from running?
Answer: A
Explanation:
The best way for an enterprise to control which GitHub Actions run is by creating a list of approved actions as an enterprise policy. This approach restricts workflows to only use the actions that are explicitly allowed, ensuring security and compliance within the organization.
NEW QUESTION # 126
You are a DevOps engineer working on a custom action. You want to conditionally run a script at the start of the action, before the main entrypoint. Which code block should be used to define the metadata file for your custom action?
Answer: D
Explanation:
For JavaScript custom actions, the metadata file supports lifecycle scripts through the runs section. The correct key for a script that runs before the main action entrypoint is pre, and the correct conditional key for controlling whether that pre-script runs is pre-if. Therefore, option B is the only valid metadata structure.
GitHub Actions does not use start, start-if, before, or before-if as action metadata keys. Option C is also invalid because pre-if only defines a condition; it cannot contain both a condition and a script reference in one line. In GitHub Actions exam terms, this tests custom action metadata, JavaScript action lifecycle hooks, and conditional execution before the main action logic.
NEW QUESTION # 127
As a developer, how can you identify a JavaScript action on GitHub?
Answer: B
Explanation:
Creating a JavaScript action, example
Prerequisites
Before you begin, you'll need to download Node.js and create a public GitHub repository.
* steps omitted *
From your terminal, initialize the directory with npm to generate a package.json file.
npm init -y
Adding actions toolkit packages
The actions toolkit is a collection of Node.js packages that allow you to quickly build JavaScript actions with more consistency.
When you commit and push your code, your updated repository should look like this:
hello-world-javascript-action/
─ action.yml
─ dist/
─ index.js
─ package.json
─ package-lock.json
─ README.md
─ rollup.config.js
─ src/
─ index.js
Reference:
https://docs.github.com/en/actions/tutorials/create-actions/create-a-javascript-action#creating-an- action-metadata-file
NEW QUESTION # 128
What is the proper syntax to reference the system-provided run number variable?
Answer: C
Explanation:
Default environment variables
The default environment variables that GitHub sets are available to every step in a workflow.
Because default environment variables are set by GitHub and not defined in a workflow, they are not accessible through the env context [Not B]. However, most of the default variables have a corresponding, and similarly named, context property. For example, the value of the GITHUB_REF variable can be read during workflow processing using the ${{ github.ref }} context property.
Reference:
https://docs.github.com/en/actions/reference/workflows-and-actions/variables
NEW QUESTION # 129
How can a workflow deploy mitigate the risk of multiple workflow runs that are deploying to a single cloud environment simultaneously? (Each correct answer presents part of the solution.
Choose two.)
Answer: B,E
Explanation:
[D] GitHub Actions now supports a concurrency key at both the workflow and job level that will ensure that only a single run or job is in progress.
concurrency
Use concurrency to ensure that only a single job or workflow using the same concurrency group will run at a time.
Example: Using concurrency and the default behavior
The default behavior of GitHub Actions is to allow multiple jobs or workflow runs to run concurrently. The concurrency keyword allows you to control the concurrency of workflow runs.
Reference:
https://github.blog/changelog/2021-04-19-github-actions-limit-workflow-run-or-job-concurrency/
https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-syntax#concurrency
https://github.com/marketplace/actions/actions-mutex
NEW QUESTION # 130
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