Free Practice Questions for Microsoft GH-900 Exam

GitHub flow is a lightweight workflow used to safely introduce changes into a repository. The first step is to create a branch for your changes. A branch gives you an isolated workspace where you can develop a feature, fix a bug, or test an idea without directly affecting the main branch. After creating the branch, you make commits and push those changes. Then you open a pull request so others can review and discuss the work. Once the pull request is approved, it can be merged into the main branch. Deleting the branch happens only after the work has been merged and the branch is no longer needed. Therefore, branch creation comes first.

A pull request compares changes from one branch into another branch. The compare branch contains the proposed changes, while the base branch is the branch those changes are intended to merge into. A pull request also includes a description where the author explains what changed, why the change is needed, and any related issue or testing information. Repository visibility settings are not part of an individual pull request. Visibility settings belong to the repository configuration and determine whether the repository is public, private, or internal, depending on the account type and plan. Since pull requests focus on proposing, reviewing, discussing, and merging branch changes, the compare branch, base branch, and description are pull request components, while repository visibility settings are not.

The GitHub Marketplace is the place where users can discover, browse, and install various tools and integrations that extend the functionality of GitHub. These tools can include CI/CD services, security checks, and other development utilities that enhance workflow automation and project management.

=================

As mentioned in the answer to Question no. 66, GitHub Actions workflows can reference actions from a variety of sources:

Any Public Repository:

Option A is correct. Actions can be sourced from any public GitHub repository.

The Same Repository as Your Workflow File:

Option B is correct. Actions within the same repository as the workflow file can be referenced directly.

A Published Docker Container Image on Docker Hub:

Option E is correct. Workflows can also use actions provided as Docker container images from Docker Hub.

Incorrect Options:

Option C and D are not relevant for directly referencing actions in workflows.

In GitHub Discussions, certain discussion categories support marking a reply as the accepted answer. When a comment is marked as an answer, GitHub highlights that comment and labels it as the accepted answer. This helps other users quickly identify the response that resolved the question without reading the entire thread. It is especially useful in Q & A-style communities where many contributors may respond with suggestions, but one answer provides the correct or most helpful solution. Marking a comment as an answer does not automatically archive the discussion or lock future comments. It is also different from pinning a discussion, which keeps an entire discussion visible at the top of the Discussions page.