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Microsoft GH-200 認定試験の出題範囲：

トピック出題範囲
トピック 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.
トピック 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.
トピック 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.
トピック 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 認定 GH-200 試験問題 (Q18-Q23):

質問 # 18
You need to store an API key in a GitHub repository. The solution must ensure that the key remains secure and can be used in a GitHub Actions workflow. What should you do?

正解：B

解説：
To use a specific API key in your GitHub Actions workflow, you can store it as a Repository Secret and reference it using the secrets context in your YAML file. This ensures the key is encrypted and masked in your workflow logs.
1. Store the API Key as a Secret
Navigate to your repository on GitHub.com.
Click Settings > Secrets and variables > Actions.
Select the Secrets tab and click New repository secret.
In the Name field, enter a descriptive identifier (e.g., MY_API_KEY).
Rules: Use only alphanumeric characters or underscores; cannot start with a number or GITHUB_.
In the Secret field, paste your API key value and click Add secret.
2. Reference the Secret in your YAML File
In your .github/workflows/your-workflow.yml file, access the secret using the syntax
${{ secrets.NAME_OF_SECRET }}. It is a best practice to map it to an environment variable within a specific step rather than echoing it directly.
Example Workflow in yaml:
name: Use API Key Example
on: [push]
jobs:
my-job:
runs-on: ubuntu-latest
steps:
- name: Run script with API Key
# Map the secret to an environment variable for the runner
env:
API_KEY: ${{ secrets.MY_API_KEY }}
run: |
# Use the environment variable in your commands
curl -H "Authorization: Bearer $API_KEY" https://api.example.com
Reference:
https://docs.github.com/actions/security-guides/using-secrets-in-github-actions


質問 # 19
You are reaching your organization's storage limit for GitHub artifacts and packages. What should you do to prevent the storage limit from being reached? (Choose two.)

正解：D、E

解説：
Deleting artifacts from repositories manually will free up storage space. Artifacts are typically stored for a limited time by default, but manual cleanup can help manage space.
Configuring the artifact and log retention period allows you to control how long artifacts and logs are retained in your repository. By shortening the retention period, you can prevent unnecessary accumulation of data and manage storage more effectively.


質問 # 20
Which action type should be used to bundle a series of run steps into a reusable custom action?

正解：C

解説：
A composite action allows you to bundle multiple steps into a single reusable action within a workflow. It is composed of multiple run steps or other actions and can be reused across workflows, making it the perfect choice for bundling a series of steps.


質問 # 21
As a developer, how can you identify a composite action on GitHub?

正解：B

解説：
runs.using for composite actions
Required: You must set this value to 'composite'.
Reference:
https://docs.github.com/en/actions/reference/workflows-and-actions/metadata-syntax


質問 # 22
Which default environment variable specifies the branch or tag that triggered a workflow?

正解：C

解説：
The GITHUB_REF environment variable specifies the branch or tag that triggered the workflow. It contains the full reference to the branch or tag, such as refs/heads/main for a branch or refs/tags/v1.0 for a tag.


質問 # 23
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