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Microsoft GH-200 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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 2
  • 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.
Topic 3
  • 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 4
  • 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.

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Microsoft GitHub Actions Sample Questions (Q72-Q77):

NEW QUESTION # 72
Which default GitHub environment variable indicates the owner and repository name?

Answer: A

Explanation:
Variables reference
Find information for supported variables, naming conventions, limits, and contexts in GitHub Actions workflows.
Variables include:
* GITHUB_REPOSITORY
The owner and repository name. For example, octocat/Hello-World
* Etc.
Reference:
https://docs.github.com/en/actions/reference/workflows-and-actions/variables


NEW QUESTION # 73
What is the best way to control access to secrets and environment variables in GitHub Actions workflows?

Answer: C

Explanation:
To control access to secrets and environment variables in GitHub Actions, you should use environments to define specific protection rules. By scoping secrets and variables to an environment rather than the entire repository, you can ensure they are only accessible to specific jobs after certain conditions are met.
Key Protection Rules for Secrets and Variables
When you use GitHub environments, you can implement several layers of control:
Required Reviewers: You can specify up to six people or teams who must approve a workflow job before it can access the environment's secrets.
Wait Timer: You can set a delay (in minutes) that must pass after a job is triggered before it can proceed and access sensitive data.
Deployment Branch Restrictions: You can limit environment access to only specific branches or tags (e.g., only allow the main branch to access production secrets).
Custom Protection Rules: For Enterprise accounts, you can use GitHub Apps to create custom gates, such as checking for open Jira tickets or passing external security scans before secrets are released.
Implementation Best Practices
Environment vs. Repository Secrets: Always prefer Environment secrets for sensitive data like production API keys. They take precedence over repository-level secrets with the same name.
Least Privilege: Only map the specific jobs that require sensitive data to the protected environment using the environment: keyword in your YAML file.
Plan Requirements: While environments are available for all public repositories, they require a GitHub Pro, Team, or Enterprise plan for private repositories.
Reference:
https://docs.github.com/actions/deployment/targeting-different-environments/using-environments- for-deployment


NEW QUESTION # 74
What are the mandatory requirements for publishing GitHub Actions to the GitHub Marketplace?
(Each correct answer presents part of the solution. Choose two.)

Answer: B,E

Explanation:
Publishing actions in GitHub Marketplace
You can publish actions in GitHub Marketplace and share actions you've created with the GitHub community.
Prerequisite include:
[B] Each repository must contain a single action metadata file (action.yml or action.yaml) at the root.
The name in the action's metadata file must be unique.
The name cannot match an existing action name published on GitHub Marketplace.
[C] The name cannot match a user or organization on GitHub, unless the user or organization owner is publishing the action. For example, only the GitHub organization can publish an action named github.
Reference:
https://docs.github.com/en/actions/how-tos/create-and-publish-actions/publish-in-github- marketplace


NEW QUESTION # 75
As a DevOps engineer, you are developing workflows to build an application. You have a requirement to create the build targeting multiple node versions. Which code block should you use to define the workflow?

Answer: C

Explanation:
The correct GitHub Actions syntax for running a job across multiple Node.js versions is strategy.matrix. The matrix values are referenced at runtime through the matrix context, so node-version: ${{ matrix.node-ver }} is correct. Option A defines the matrix correctly but references it incorrectly through strategy.node-ver; matrix values are not accessed through the strategy context. Option C uses matrix-strategy, which is not a valid GitHub Actions workflow key. Option D reverses the structure by putting strategy under matrix, which is invalid. This question tests matrix strategy syntax, dynamic job configuration, and using matrix values as inputs to actions such as actions/setup-node. GitHub defines jobs. < job_id > .strategy.matrix as the proper matrix mechanism.


NEW QUESTION # 76
As a developer, one of your workflows will require XCode version 11.2 hosted on macOS Catalina (i.e., v10.15). You've already created and configured a self-hosted runner to conform to those requirements and registered it with your organization. What else should you do to ensure that the workflow accesses the correct runner instance? (Each answer presents a complete solution. Choose three.)

Answer: A,C,D

Explanation:
[C, F] Using custom labels to route jobs
You can create custom labels and assign them to your self-hosted runners at any time. Custom labels let you send jobs to particular types of self-hosted runners, based on how they're labeled.
[E] Using default labels to route jobs
A self-hosted runner automatically receives certain labels when it is added to GitHub Actions.
These are used to indicate its operating system and hardware platform:
self-hosted: Default label applied to self-hosted runners.
linux, windows, or macOS: Applied depending on operating system.
x64, ARM, or ARM64: Applied depending on hardware architecture.
You can use your workflow's YAML to send jobs to a combination of these labels. In this example, a self-hosted runner that matches all three labels will be eligible to run the job:
runs-on: [self-hosted, linux, ARM64]
self-hosted - Run this job on a self-hosted runner.
linux - Only use a Linux-based runner.
ARM64 - Only use a runner based on ARM64 hardware.
Reference:
https://docs.github.com/en/actions/how-tos/manage-runners/self-hosted-runners/use-in-a- workflow


NEW QUESTION # 77
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