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Microsoft GH-200 Exam Syllabus Topics:

Section	Weight	Objectives
Manage GitHub Actions for the Enterprise	20-25%	- Governance and policy 1. Reusable workflows governance 2. Organization policies and access control - Runner management 1. Runner groups and scaling 2. Hosted and self-hosted runners - Secrets and variables 1. Org/repo/environment secrets 2. Secure usage and scoping
Author and Manage Workflows	20-25%	- Configure workflow triggers and events 1. Scheduled, manual, webhook, and repository events 2. workflow_dispatch inputs and workflow_call inputs/secrets mapping - Design workflow structure 1. Jobs, steps, dependencies, conditions 2. Contexts and expressions (${{ }}) 3. Matrix builds and strategy configuration 4. Service containers and environment variables - Manage execution and outputs 1. GITHUB_OUTPUT, GITHUB_ENV, step outputs 2. Workflow summaries and badges 3. Artifacts and caching
Secure and Optimize Automation	10-15%	- Optimization 1. Caching and artifact retention 2. Performance and cost optimization - Security best practices 1. Prevent script injection 2. GITHUB_TOKEN permissions 3. OIDC authentication
Consume and Troubleshoot Workflows	15-20%	- Artifacts and logs management 1. Download artifacts 2. Use GitHub UI and API for runs - Analyze workflow runs 1. Matrix execution debugging 2. Logs, triggers, and run history - Reusable workflows and templates 1. Starter workflows vs reusable workflows 2. Composite actions usage
Author and Maintain Actions	15-20%	- Action structure and metadata 1. action.yml structure and inputs/outputs 2. Workflow commands in actions - Create custom actions 1. Debugging action failures 2. JavaScript, Docker, composite actions - Distribution and versioning 1. Version pinning and release strategies 2. GitHub Marketplace publishing

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Microsoft GitHub Actions Sample Questions (Q50-Q55):

NEW QUESTION # 50
As a developer, you created a JavaScript action. What is the best way to test your JavaScript action?

A. Create a workflow that includes the actions/debug-javascript action.
B. Create a workflow that only executes your specific JavaScript action.
C. Use a tool called @vercel/ncc to compile your code.
D. Package your JavaScript action inside a docker container image and run it.

Answer: B

Explanation:
Testing out your JavaScript action in a workflow
You can test your action out in a workflow.
Public actions can be used by workflows in any repository. When an action is in a private repository, the repository settings dictate whether the action is available only within the same repository or also to other repositories owned by the same user or organization.
Reference:
https://docs.github.com/en/actions/tutorials/create-actions/create-a-javascript-action

NEW QUESTION # 51
Which YAML snippet triggers a GitHub Actions workflow for both push and pull request events?

Answer: D

Explanation:
To trigger a GitHub Actions workflow on both push and pull request events, use the on key with a list of the events:
on:
push:
branches: [ "main" ]
pull_request:
branches: [ "main" ]
Key Details:
Events: You can list multiple events under on. This setup ensures the workflow runs whenever code is pushed to main or when a PR is opened/updated against main.
Activity Types: By default, pull_request triggers on opened, reopened, and synchronize (new commits to the PR).
Filtering: You can further refine these triggers by adding specific paths, tags, or different branches to avoid unnecessary runs Incorrect:
[Not A]
The push event is for the dev branch only.
[Not B]
Has only the push event.
[Not C]
Has only the push event.
Reference:
https://blog.devops.dev/automate-your-workflow-a-guide-to-ci-cd-with-github-actions-3f395d60ba69

NEW QUESTION # 52
What are the mandatory requirements for publishing GitHub Actions to the GitHub Marketplace?
(Each correct answer presents part of the solution. Choose two.)

A. Each repository can contain a collection of actions as long as they are under the same Marketplace category.
B. The action can be either in a public or private repository.
C. The action's metadata file must be in the root directory of the repository.
D. The action's name cannot match a user or organization on GitHub unless the user or organization owner is publishing the action.
E. The name should match with one of the existing GitHub Marketplace categories.

Answer: C

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 # 53
What is the best way to control access to secrets and environment variables in GitHub Actions workflows?

A. Use the GITHUB_TOKEN secret with read/write permissions to ensure that the workflows can access repository content and perform all the actions.
B. Use environment protection rules to control which workflows can access all the secrets.
C. Use branch protection rules to prevent workflows from running on untrusted branches.
D. Enable workflows that are triggered by external sources, have no restrictions, and are from public repositories to access required components automatically.

Answer: B

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 # 54
In which locations can actions be referenced by workflows? (Choose three.)

A. the repository ' s Secrets settings page
B. a public NPM registry
C. a published Docker container image on Docker Hub
D. the same repository as the workflow
E. the runs-on: keyword of a workflow file
F. a separate public repository
G. an .action extension file in the repository

Answer: C,D,F

Explanation:
Actions can be stored in a separate public repository and referenced in workflows by specifying the repository and action name.
Actions can also be stored in the same repository as the workflow and referenced directly by their path (e.g., ./.
github/actions/my-action).
Actions can be packaged as Docker container images and published to Docker Hub. These can then be referenced in workflows by specifying the Docker image.

NEW QUESTION # 55
......

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