GH-900 Practice Exam Questions and Answers

GitHub provides several pre-defined repository roles that determine the level of access and permissions a user has within a repository. The roles that are included by default are:

Triage: Allows users to manage issues and pull requests without write access to the code.

Maintain: Provides more extensive access, including managing settings, but without full administrative control.

Write: Grants permission to push changes and manage issues and pull requests.

Roles like "Security" and "Delete" are not standard pre-defined roles, and "View" is generally referred to as "Read" in GitHub's permission structure.

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Two recommended ways to improve the discoverability of a repository on GitHub are:

B.  

Create a README file describing the repository: A well-written README file provides essential information about the project, such as what it does, how to use it, and how to contribute. This is often the first thing potential users or contributors will see, making it critical for discoverability.

D.  

Add topics to classify the repository: Adding topics to your repository helps classify it under specific categories, making it easier for others to find it through GitHub’s search and exploration features. Topics act like tags, helping to connect your project with users interested in similar subjects.

Registering a repository with GitHub search and adding labels are not applicable actions for improving discoverability in the broader sense.

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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.

GitHub Projects supports various layouts to help teams organize and visualize their work. The available layouts include:

B.  

Kanban: This is a visual task management tool where tasks are represented as cards and moved across columns that represent different stages of work.

C.  

Board: This layout is similar to Kanban but can be more flexible, allowing users to set up boards in various ways to suit their workflow needs.

D.  

Table: The Table layout allows you to view your tasks in a spreadsheet-like format, making it easy to manage and edit large amounts of data at once.

Roadmap and Backlog are not standard layouts provided by GitHub Projects. While these terms might be relevant in other project management contexts, GitHub Projects specifically offers Kanban, Board, and Table layouts.

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When using GitHub Codespaces, you can customize several aspects of the development environment:

Shell: You can choose the default shell to be used in the Codespace, such as Bash, Zsh, or PowerShell.

Name: Users can customize the name of their Codespace for easier identification.

Default editor: You can choose which editor to use within the Codespace, such as Visual Studio Code or others that may be supported.

Branch protections and the operating system are not customizable for an individual Codespace within GitHub, making the options Shell, Name, and Default editor the correct answers.

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GitHub Actions are automated workflows that can be triggered by various events on GitHub. Some common events that trigger workflows include pushes to a repository, creation of issues, and comments on discussion posts.

Triggering GitHub Actions:

Option D (Pushing to a GitHub repository) is correct because this is one of the most common triggers for CI/CD workflows.

Option F (Creating an Issue) is correct because issues are commonly used as triggers for workflows, such as automatically assigning a label or notifying a team.

Option A (Adding a comment to a discussion post) is correct because actions can be triggered by activity on discussion posts, including comments.

Incorrect Options:

Option B (Creating a new repository) is incorrect because this action typically does not trigger workflows within a specific repository.

Option C (Committing a change to a local git repository) is incorrect because GitHub Actions are triggered by events on the GitHub platform, not by local commits.

Option E (Disabling a GitHub runner) is incorrect because it is related to the environment where actions are executed, not a trigger for workflows.