Microsoft GH-900 - GitHub Foundations

GitHub supports special closing keywords that connect a pull request to an issue and automatically close the issue when the pull request is merged into the default branch. Examples include keywords such as “fixes,” “closes,” or “resolves,” followed by the issue number. Using a reference like Fixes #42 in the pull request description tells GitHub that the pull request resolves that issue. Assigning the issue to the pull request author does not create automatic closure behavior. Mentioning the issue after merging may create a reference, but it does not automatically close the issue retroactively. Adding the issue number to the pull request title may help humans understand the relationship, but the supported automatic closing behavior depends on the keyword reference.

Innersource is a development practice where an organization adopts open-source development methodologies within its own internal environment. The primary goal of innersource is to break down silos and encourage collaboration across different teams within the organization.

Sharing Code Between Teams:

Option B is correct because innersource involves sharing code between teams within the organization, similar to how open-source communities share code across the public domain. This practice fosters collaboration, improves code quality, and allows for reuse of code, reducing duplication of efforts.

Incorrect Options:

Option A is incorrect because adopting open-source code into the organization is related to using open-source software, not specifically to innersource practices.

Option C is incorrect because removing open-source code from the organization is contrary to the principles of both open source and innersource.

Option D is incorrect because making all repositories publicly accessible refers to open source, not innersource. Innersource typically involves keeping code internal to the organization.

Pull requests are created to propose changes from one branch to another. These branches must be different; otherwise, there would be no changes to propose. Typically, pull requests are made from a feature or topic branch to a main branch (such as main or master ), allowing for code review and integration before the changes are merged.

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GitHub provides a powerful search syntax to filter and find specific issues across repositories in an organization.

Search Query Syntax:

Option A is correct because the query org:Avocado is:issue label:guacamole " 404 error " is the best way to search for all issues within the " Avocado " organization that contain the text " 404 error " and are labeled with " guacamole " . This query is precise and leverages GitHub’s advanced search capabilities.

Incorrect Options:

Option B is incorrect because it requires manual filtering in a specific repository rather than searching across the entire organization.

Option C is incorrect because selecting " Issues " in the filter by section is redundant when using the query is:issue .

Option D is incorrect because accessing organization settings to look for repository labels is not relevant to searching for issues.

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.

The terms Alpha and Beta are often used in software development to describe different stages of feature testing and release.

Alpha Features:

Option A is correct because Alpha features are typically in the early stages of development and are not available to the public. They are usually tested internally or by a limited audience.

Incorrect Options:

Option B is incorrect because Alpha features are often undocumented as they are in the early development phase.

Option C is incorrect because Alpha and Beta features usually do not offer Service Level Agreements (SLAs) due to their experimental nature.

Option D is incorrect because Beta features might offer limited support, but it is not guaranteed, especially compared to fully released features.

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.