Free GH-900 Practice Test Questions and Answers (2026)

Forking a gist is the most efficient way to create a public gist based on another user's gist while

maintaining the history of the original gist. When you fork a gist, you create a new gist in your own

account that retains a link to the original, allowing you to track changes and contribute back if

desired.

Forking a Gist:

Option A is correct because forking is a straightforward way to create your own copy of another

user's gist while preserving the history and making it easy to track updates.

Incorrect Options:

Option B is incorrect because creating a new gist and copying the content would not preserve the

history or link back to the original gist.

Option C is incorrect because cloning is typically associated with repositories, not gists, and is more

complex than forking for this purpose.

Option D is incorrect because requesting to be added to the existing gist is not a standard GitHub

feature.

Reference:

GitHub Docs: Forking Gists

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.

GitHub supports various syntax formats that align with Markdown and HTML conventions. Here's a

breakdown of the provided options:

Comment Syntax:

Option C is correct. The syntax is used in Markdown files to insert

comments. These comments will not be rendered in the final output, making them useful for adding

notes or instructions within the code or documentation.

Incorrect Options:

Option A (* This is a heading) is incorrect because an asterisk (*) denotes an unordered list item, not

a heading. A heading in Markdown is typically created with one or more hash symbols (#).

Option B (This is a link) is incorrect because this is plain text and not the syntax for creating a link. The

correct syntax would be [This is a link](URL).

Option D (This is bolded text) is incorrect because this is plain text, not the correct Markdown syntax

for bold text, which should be **This is bolded text** or __This is bolded text__.

Option E (1. This is an ordered list) is incorrect as it does represent an ordered list item, but it was not

the syntax format asked about in the question. The question specifically focuses on matching

associated text with syntax, where only the comment option is correct.

Reference:

GitHub Flavored Markdown (GFM)

GitHub Docs: Basic writing and formatting syntax

GitHub provides repository admins with a feature called "Insights" where they can view various pre-

built visualizations and analytics related to the repository.

Insights:

Option C is correct because the "Insights" tab in a GitHub repository offers various pre-built

visualizations, including contributions, traffic, code frequency, dependency graphs, and more. This

helps admins and maintainers track the project's activity and health.

Other Options:

Option A (Settings) is incorrect because the Settings tab is where you configure repository settings,

permissions, and integrations, but it does not provide visualizations of repository data.

Option B (Issues) is incorrect because the Issues tab is used for tracking bugs, enhancements, and

other tasks but does not provide data visualizations.

Option D (Charts) is incorrect as there is no "Charts" tab or section in GitHub. The correct location for

data visualizations is under "Insights."

Reference:

GitHub Docs: Viewing Repository Insights

GitHub focuses on several key areas that align with its mission to support developers and foster

collaboration:

Nurturing a Community That Supports Open Source Principles:

Option A is correct. GitHub is a major advocate for open-source software development, providing

tools and platforms that enable open collaboration. GitHub hosts millions of open-source projects

and supports a community-driven approach to software development.

Providing Access and Opportunities for Developers:

Option B is correct. GitHub provides a wide range of resources, such as GitHub Education, GitHub

Actions, and GitHub Marketplace, to empower developers. These tools and opportunities help

developers of all levels to learn, contribute, and improve their skills.

Building a Technology Platform for Secure Code Sharing and Collaboration:

Option D is correct. GitHub’s core function is to provide a platform where developers can securely

share code and collaborate. Features like private repositories, branch protections, and GitHub

Actions for CI/CD (Continuous Integration/Continuous Deployment) workflows highlight this focus.

Incorrect Options:

Option C is incorrect because GitHub is not a social media platform for project managers; it is a code

hosting platform with social features primarily aimed at developers.

Option E is incorrect because GitHub does not focus on hosting video calls. While some integrations

might allow for video conferencing, it is not a core focus of GitHub.

Reference:

GitHub Docs: The GitHub Developer Experience

GitHub Docs: About GitHub

This detailed explanation covers the primary focuses of GitHub, emphasizing its role in the open-

source community and its commitment to providing a secure and collaborative platform for

developers.

The primary purpose of creating a security policy in a GitHub repository is to guide users and

contributors on how to report security vulnerabilities in a responsible and secure manner. This policy

outlines the preferred method of communication, timelines, and any other pertinent information

related to handling security issues.

Security Policy:

Option C is correct because a security policy provides guidelines for responsibly disclosing security

vulnerabilities. This helps maintainers respond to and address security concerns promptly and

securely, thereby protecting the project and its users.

Incorrect Options:

Option A is incorrect because ensuring peer code review is a best practice for code quality, but it is

not the primary purpose of a security policy.

Option B is incorrect because push protection for secrets is managed through repository settings, not

the security policy.

Option D is incorrect because customizing Dependabot configuration is related to dependency

management, not directly to security policies.

Reference:

GitHub Docs: Adding a Security Policy to Your Repository

In GitHub, issues and pull requests (PRs) are essential tools for managing work and collaboration in a

project. Assigning individuals to these issues or PRs is a way to indicate responsibility for addressing

the issue or completing the PR.

Anyone with write permissions to the repository:

Users who have write permissions to a repository can be assigned to issues and pull requests. Write

permissions allow users to push changes to the repository, create branches, and modify issues and

pull requests. Assigning them to an issue or PR ensures they are recognized as responsible for the

task.

Anyone who has commented on the Issue or pull request:

GitHub allows you to assign issues or pull requests to users who have already engaged with the

discussion by commenting on it. This feature is particularly useful for quickly assigning tasks to those

who are already involved in the conversation.

Incorrect Options:

Option A is incorrect because having an enterprise GitHub account alone does not necessarily grant

the ability to be assigned to issues or PRs. Permission to assign is based on repository-specific roles

and permissions.

Option C is incorrect because not all personal GitHub accounts can be assigned to issues or PRs. The

user needs either write permissions to the repository or must have commented on the issue or PR.

Reference:

GitHub Docs: Assigning Issues and Pull Requests

GitHub Docs: Permission Levels for a Repository

This detailed explanation provides clarity on GitHub's assignment mechanics for issues and pull

requests, reflecting the platform's collaborative nature.

On GitHub, you can choose to receive ongoing updates about specific activities by subscribing to

notifications for all activity in a repository. This allows you to stay informed about all changes,

discussions, and updates related to a particular project. Additionally, GitHub provides the ability to

customize notifications to suit your p

.

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.

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.

Reference:

GitHub Docs: About CODEOWNERS

GitHub Blog: Automatically Requesting Reviews with CODEOWNERS

Git is a widely-used version control system that has several defining features:

Distributed Version Control:

Git is a distributed version control system, meaning that every developer has a full copy of the entire

repository, including its history, on their local machine. This enables greater flexibility, as work can be

done offline and each user has access to the full project history.

Open Source Software:

Git is open-source, meaning its source code is freely available for use, modification, and distribution.

This fosters a large community of users and contributors who continuously improve the software.

Efficiency with Large Projects:

Git is designed to handle projects of any size with speed and efficiency. It can manage large

codebases and many contributors without significant performance degradation, making it suitable

for everything from small personal projects to large, complex software systems.

Incorrect Options:

Option B is incorrect because Git is not a sequential version control system, nor is it inherently tied to

cloud-based services. GitHub, GitLab, and other platforms offer cloud hosting for Git repositories, but

Git itself is a version control tool.

Option C is incorrect because Git is not limited to small projects; it is designed to scale efficiently, and

the other features mentioned are only partial descriptions of Git's capabilities.

Option D is incorrect because Git is not a centralized version control system; it is distributed.

Additionally, Git is open-source, not proprietary, and is used for projects of all sizes.

Reference:

Pro Git Book: What is Git?

Git Documentation: Distributed Version Control

GitHub Docs: Understanding the Git Workflow

In GitHub Discussions, several default categories are provided to help organize conversations within

a project. One of the default categories is Show and tell. This category is designed for users to

showcase their work, share progress, or discuss achievements with the community. The other

options listed (Bug report, Daily check-in, Security concern) are not default categories but could be

custom categories created by the repository maintainers.

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.

After 30 minutes of inactivity, a GitHub Codespace will time out. This is designed to conserve

resources when the Codespace is not being actively used. The session will be paused, and you'll need

to reconnect to resume your work. However, the Codespace is not deleted, and any unsaved changes

might not be lost but should be committed or saved to prevent data loss.

In GitHub, when viewing the list of projects for an organization, a user can identify a GitHub Projects

template by selecting the Templates tab. This tab specifically lists available templates that can be

used to create new projects based on predefined structures and workflows.