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Microsoft GH-200 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Author and Maintain Workflows: This section of the exam measures skills of DevOps Engineers and Automation Specialists and covers building and managing workflows triggered by events such as pushes, scheduled times, manual triggers, and webhooks. It includes understanding workflow components like jobs, steps, actions, and runners, syntax correctness, environment variables, secrets management, and dependencies between jobs. Candidates will also demonstrate practical abilities to create workflows for various purposes, including publishing packages, using service containers, routing jobs, and deploying releases to cloud providers.
Topic 2
  • Author and Maintain Actions: This domain evaluates the abilities of Action Developers and Automation Engineers to select and create suitable types of GitHub Actions, such as JavaScript, Docker containers, or run steps. It emphasizes troubleshooting action code, understanding the components and file structures of actions, and using workflow commands within actions to communicate with runners, including exit code management.
Topic 3
  • Manage GitHub Actions in the Enterprise: This section measures the expertise of Enterprise Administrators and Platform Engineers in distributing and managing GitHub Actions and workflows at the organizational level. It includes reuse and sharing of templates, strategies for managing reusable components via repositories and naming conventions, controlling access to actions, setting organization-wide usage policies, and planning maintenance to ensure efficient enterprise-wide deployment of GitHub Actions.
Topic 4
  • Consume Workflows: This domain targets Software Developers and Quality Assurance Engineers and focuses on interpreting workflow runs and their outcomes. It covers identifying triggering events, reading workflow configurations, troubleshooting failures by analyzing logs, enabling debug logging, managing environment variables, caching dependencies, and passing data between jobs. Candidates also manage workflow runs, artifacts, approvals, and status badges, as well as locating workflows within repositories and leveraging organizational templated workflows.

>> GH-200 Valid Exam Topics <<

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Microsoft GitHub Actions Sample Questions (Q100-Q105):

NEW QUESTION # 100
What metadata file in a custom action defines the main entry point?

Answer: C

Explanation:
The action.yml file is the metadata file in a custom GitHub Action that defines the main entry point, including information such as the inputs, outputs, description, and the runs key that specifies the main entry point (e.g., a script or a Docker container).


NEW QUESTION # 101
You need to recommend a strategy for managing and leveraging reusable GitHub Actions workflows across multiple repositories in a large organization. What should you recommend?

Answer: B

Explanation:
To effectively manage GitHub Actions across multiple repositories, storing reusable workflows in a central repository is a standard best practice. This centralizes CI/CD logic, ensures consistency, and allows you to update processes in one place rather than in every individual project.
*-> 1. Structure the Central Repository
Location: Create a dedicated repository (e.g., my-org/actions-workflows).
File Path: Store YAML workflow files in the .github/workflows directory.
Trigger: Use the on: workflow_call trigger to make a workflow reusable.
Documentation: Include a README.md or WORKFLOWS.md that describes inputs, secrets, and usage for each workflow.
2. Configure Access Permissions
For other repositories to use these workflows, you must explicitly grant access in the central repository's settings:
Navigate to Settings > Actions > General.
Scroll to the Access section.
Select "Accessible from repositories in the '{your-org}' organization" (for private repos) or ensure the repository is public.
*-> 3. Use the uses: Syntax to Reference Workflows
In your "caller" repositories, reference the central workflow within a job using the following format:
jobs:
call-workflow:
uses: {owner}/{repo}/.github/workflows/{filename}.yml@{ref}
with:
input-id: 'value'
secrets: inherit # Or pass specific secrets
{ref}: Can be a branch name (e.g., @main), a release tag (e.g., @v1.2.0), or a specific commit SHA.
Versioning: For production, avoid using @main. Instead, use release tags or commit SHAs to prevent breaking your pipelines when the central workflow is updated.
Reference:
https://github.com/orgs/community/discussions/175466


NEW QUESTION # 102
As a developer, how can you identify a JavaScript action on GitHub?

Answer: B

Explanation:
A JavaScript action is identified in its action metadata file by the runs.using runtime value. In older exam-style content, this is commonly shown as node16; in current GitHub documentation, supported JavaScript runtimes have moved forward, but the principle remains the same: JavaScript actions declare a Node.js runtime under runs.using and specify the main JavaScript file under runs.main.
Option A is not reliable because a repository can contain package.json without being a JavaScript action. Option B is unrelated because workflow files do not define the action type. Option C is naming- based and has no technical meaning. GitHub metadata syntax defines runs.using as the runtime for JavaScript actions.


NEW QUESTION # 103
Which of the following commands will set the $FOO environment variable within a script, so that it may be used in subsequent workflow job steps?

Answer: A

Explanation:
The $GITHUB_ENV environment variable is used to set environment variables that persist across steps in a workflow job. By echoing FOO=bar into $GITHUB_ENV, the variable FOO will be available in subsequent steps within the same job.
Variables set in GITHUB_ENV apply only to the current job.
Example:
echo "PR_NUMBER=$pr_number" >> $GITHUB_ENV
Reference:
https://github.com/orgs/community/discussions/56849


NEW QUESTION # 104
You installed specific software on a Linux self-hosted runner. You have users with workflows that need to be able to select the runner based on the identified custom software. Which steps should you perform to prepare the runner and your users to run these workflows? (Each correct answer presents part of the solution. Choose two.)

Answer: A,D

Explanation:
[F] Add a label for the custom software as required.
Note: Using labels with self-hosted runners
You can use labels to organize your self-hosted runners based on their characteristics.
Creating a custom label
You can create custom labels for runners at the repository and organization levels.
[C, not D] Linux is a default label and does not have to be created to be used.
Reference:
https://docs.github.com/en/actions/how-tos/manage-runners/self-hosted-runners/apply-labels


NEW QUESTION # 105
......

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