Free Microsoft GH-900 Practice Exam with Questions & Answers

The CODEOWNERS file in a GitHub repository is used to define individuals or teams that are responsible for specific parts of the codebase. When changes are made to files or directories that match the patterns specified in the CODEOWNERS file, GitHub automatically requests reviews from the listed code owners.

Setting Reviewers Automatically:

Option D is correct because the primary purpose of a CODEOWNERS file is to automatically set reviewers for pull requests that affect the specified files or directories. This ensures that the appropriate team members are notified and review the changes before they are merged.

Incorrect Options:

Option A is incorrect because the CODEOWNERS file does not restrict who can edit specific files; it only influences who is required to review changes.

Option B is partially related but not fully accurate because while CODEOWNERS does require certain reviews, it does not mandate peer review for all code changes.

Option C is incorrect because the CODEOWNERS file does not define access permissions for the repository; it deals with code review processes.

The Codespaces lifecycle on GitHub includes several key steps:

Create : This is the step where a new Codespace is initiated.

Rebuild : A Codespace can be rebuilt to ensure that the environment is up-to-date with the latest code or configurations.

Delete : Once a Codespace is no longer needed, it can be deleted to free up resources.

Committing, cloning, or installing are typical Git operations but are not considered part of the specific lifecycle steps for a GitHub Codespace.

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In GitHub, labels are used to categorize issues and pull requests, and certain default labels are provided to help manage tasks:

Help Wanted Label:

Option C is correct. The " Help wanted " label is used to indicate that the maintainer of the repository needs assistance on a particular issue or pull request. This label helps in attracting contributors who might be interested in helping with specific tasks.

Other Options:

Option A ( " Enhancement " ) is incorrect because it indicates a request for a new feature or improvement rather than a call for help.

Option B ( " Question " ) is incorrect because it is used to flag issues or pull requests that seek clarification or additional information, not necessarily requiring assistance.

Option D ( " Documentation " ) is incorrect because it labels issues or PRs related to documentation, not for seeking help.

InnerSource applies open source collaboration practices inside an organization while keeping the work internal. Its primary goal is to make company projects more visible to employees and reduce friction when teams contribute across boundaries. Instead of every team working in isolation, InnerSource encourages shared ownership, discoverable repositories, clear contribution guidelines, issues, pull requests, and code reviews. This helps employees reuse existing solutions, avoid duplicated work, and collaborate more efficiently. Unlike open source, InnerSource does not require making repositories public or accepting outside contributors. It also does not remove the need for pull requests; pull requests are often central to the contribution process. The key difference is that InnerSource focuses on internal collaboration using open source-style practices.

The GitHub Command Palette provides quick keyboard-based access to navigation, commands, repositories, issues, pull requests, projects, and other GitHub areas. On GitHub.com, Windows and Linux users can open the Command Palette by pressing Ctrl+K. This shortcut helps users move faster through GitHub without relying only on menus or page navigation. Ctrl+S is commonly associated with saving in many applications, not opening the GitHub Command Palette. Shift+Enter is generally used for line breaks or text-entry behavior in many interfaces. Alt+P is not the standard GitHub.com shortcut for this feature. Knowing Command Palette shortcuts is useful for the GitHub Foundations exam because it tests productivity features available directly in the GitHub web interface.

Creating a repository template in GitHub requires specific steps and permissions:

Creating a Repository Template:

Option A is correct because a user with Admin permissions can navigate to the repository ' s settings and enable the " Template Repository " option. This allows other users to generate new repositories from this template, which includes all branches, tags, and file history.

Other Options:

Option B is incorrect because " Maintain " permissions do not allow the creation of repository templates, and the option is not found in Organization settings but in the repository settings.

Option C is incorrect because the " Template Repository " option is in the repository settings, not in Organization settings.

Option D is incorrect because " Maintain " permissions do not grant the ability to create a repository template.

GitHub automatically subscribes users to conversations when their direct involvement indicates they may need future notifications. Being at-mentioned in a thread subscribes the mentioned user because GitHub treats the mention as a direct request for attention. Opening a pull request also subscribes the author because they own the proposed change and need updates about reviews, comments, checks, and merge activity. Commenting on an issue or pull request subscribes the commenter because they have participated in the conversation and may need follow-up notifications. Deleting a branch does not represent participation in a specific conversation, and changing repository visibility is an administrative repository action rather than a conversation-level activity. Automatic subscriptions help users stay informed about discussions relevant to them.