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Microsoft GH-200 Exam Syllabus Topics:

Topic	Details
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	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 3	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 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.

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Microsoft GitHub Actions Sample Questions (Q58-Q63):

NEW QUESTION # 58
Which of the following is the best way for an enterprise to prevent certain marketplace actions from running?

A. Create a list of the actions that are allowed to run as an enterprise policy. Only these actions can be run.
B. Create a list of the actions that are restricted from being used as an enterprise policy. Every other action can be run.
C. Create a list that is maintained as a . yml file in a . github repository specified in the enterprise. Only these actions can be run.
D. It is not possible; if an action is in the marketplace, its use cannot be restricted.

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 # 59
What metadata file in a custom action defines the main entry point?

A. action.js
B. main.yml
C. index.js
D. action.yml

Answer: D

Explanation:
The metadata file that defines the main entry point for a custom GitHub Action is action.yml (or action.yaml).
This file, located in the root directory of your action's repository, uses YAML syntax and includes a runs key that specifies how the action is executed and which script is the main entry point.
Key fields in the action.yml file
name: The name of your action displayed in the GitHub Actions UI.
description: A short description of the action.
runs: This required key specifies the execution environment and the main entry point.
For a JavaScript action, the runs field includes using (e.g., node20) and main (e.g., index.js) to define the runtime and the primary script file.
For a Docker container action, the runs field includes using: 'docker' and image (e.g., 'Dockerfile') to point to the Docker build file or image.
inputs: Optional parameters that allow users to pass data to your action.
outputs: Optional output parameters that the action can produce for use by subsequent steps in a workflow.
Reference:
https://docs.github.com/en/actions/reference/workflows-and-actions/metadata-syntax

NEW QUESTION # 60
What are the two most significant advantages of adding documentation while distributing custom actions?
Each correct answer presents a complete solution.
NOTE: Each correct answer is worth one point.

A. It creates a readme.md for the consuming workflow.
B. It provides an example of the action.
C. It shares the description of the action to the users.
D. It generates auto completion when using the action in a workflow.

Answer: B,C

Explanation:
Documentation is critical when distributing custom GitHub Actions because users need to understand what the action does and how to use it correctly. A good README or marketplace description explains the action's purpose, required inputs, outputs, permissions, and expected behavior. This directly supports option B.
Documentation should also include practical usage examples, such as a workflow snippet showing the uses:
syntax and required with: inputs, which supports option C. Option A is incorrect because documentation does not create a README inside the consuming workflow; the action author provides documentation in the action repository. Option D is also incorrect because documentation does not automatically generate workflow auto-completion. This topic tests custom action publishing and usability best practices.

NEW QUESTION # 61
Which statement accurately describes using labels to route GitHub Actions workflows to runners?

A. A user can assign multiple labels to a self-hosted runner and use the labels in a runs-on to target only runners that match all the specified labels.
B. To target a specific runner, the runs-on must match the runner's hostname rather than its labels.
C. GitHub Actions automatically assigns the runner's IP address as a label, and the label must be used in a runs-on.
D. Labels apply only to GitHub-hosted runners and are ignored by self-hosted runners.

Answer: A

Explanation:
Self-hosted runners can have default labels and custom labels. These labels are used in the runs-on field to route workflow jobs to runners that match the required criteria. When multiple labels are specified, the runner must match all listed labels before GitHub Actions can assign the job to that runner. Therefore, option A is correct. Option B is false because labels are especially important for self-hosted runners. Option C is incorrect because GitHub does not require the runner IP address as a routing label. Option D is also incorrect because workflows target runners by labels or runner groups, not by hostname. This topic validates runner selection, self-hosted runner configuration, and workflow job routing.

NEW QUESTION # 62
As a DevOps engineer, you are developing a composite action. You have a step that needs to be executed against a subdirectory. Which code snippet should you use within the composite action to specify the directory?

A. runs:
using: " composite "
working-directory: ${{ inputs.dir }}
steps:
- run: $GITHUB_ACTION_PATH/script.sh
shell: bash
B. runs:
using: " composite "
steps:
- run: $GITHUB_ACTION_PATH/script.sh
directory: ${{ inputs.dir }}
shell: bash
C. runs:
using: " composite "
directory: ${{ inputs.dir }}
steps:
- run: $GITHUB_ACTION_PATH/script.sh
shell: bash
D. runs:
using: " composite "
steps:
- run: $GITHUB_ACTION_PATH/script.sh
working-directory: ${{ inputs.dir }}
shell: bash

Answer: D

Explanation:
For a composite action, commands are defined inside the runs.steps section of the action metadata file. When a specific command must execute from a particular folder, the correct key is working-directory, and it must be applied at the individual run step level. Option D is correct because it keeps using: " composite " at the runs level and applies working-directory: ${{ inputs.dir }} directly to the step that runs the script. Option A is incorrect because directory is not a valid GitHub Actions run-step key. Option B incorrectly places directory at the runs level. Option C uses the right keyword but places it at the wrong level. This tests composite action metadata syntax and correct step-level execution configuration.

NEW QUESTION # 63
......

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