GH-900

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The dumps for GH-900 exam was last updated on Apr 03,2026 .

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Question#1

What is a gist?

A. GitHub app

B. Git repository

C. Markdown document

D. GitHub Pages site

Explanation:
A gist on GitHub is essentially a Git repository, albeit a simplified one, designed for sharing snippets of code, notes, or other text content. Gists support version control and can be public or secret.
Gist as a Git Repository:
Option B is correct because each gist is a Git repository, meaning you can clone it, commit changes, and even fork it, just like any other Git repository.
Incorrect Options:
Option A is incorrect because a gist is not an app; it’s a feature of GitHub that provides a simplified repository.
Option C is incorrect because while a gist may contain Markdown documents, it is fundamentally a repository that can hold various file types.
Option D is incorrect because GitHub Pages is a separate service for hosting websites, not related to gists.
Reference: GitHub Docs: About Gists

Question#2

Which of the following two-factor authentication (2FA) methods can you use to secure a GitHub account? (Each answer presents a complete solution. Choose three.)

A. Authenticator app

B. Security questions

C. GitHub mobile

D. Security keys

E. Single sign-on

Explanation:
The following two-factor authentication (2FA) methods can be used to secure a GitHub account:
A. Authenticator app: You can use an authenticator app (like Google Authenticator or Authy) to generate time-based one-time passwords (TOTP) for logging in.
C. GitHub mobile: The GitHub mobile app can also be used to receive 2FA codes, adding convenience for users who prefer to manage everything from their mobile devices.
D. Security keys: Physical security keys (such as YubiKeys) can be used as a strong form of 2FA, requiring physical access to the key to authenticate.
Security questions and Single sign-on (SSO) are not considered 2FA methods in the context of GitHub account security.

Question#3

Which of the following best describes GitHub Copilot?

A. A Visual Studio Code extension for developing AI solutions

B. An AI tool designed to replace software developers

C. An AI pair programmer that offers autocomplete-style suggestions

D. An advanced search tool to intelligently reuse existing code in your projects

Explanation:
GitHub Copilot is described as an AI pair programmer that offers autocomplete-style suggestions. It is a tool integrated into development environments like Visual Studio Code that helps developers by providing code suggestions as they type. Copilot can suggest entire lines or blocks of code based on the context of what you’re writing, making it a valuable assistant in coding, but not a replacement for developers.

Question#4

Which of the following options is available as a default Discussion category?

A. Bug report

B. Daily check-in

C. Show and tell

D. Security concern

Explanation:
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.

Question#5

A distributed version control system is best described as a system that:

A. Relies on a central server to store the entire project history and allows developers to check out files for editing.

B. Stores project files on a cloud-based server and allows multiple developers to collaborate on the same codebase simultaneously.

C. Ensures each developer has their own local copy of the entire code repository, including the complete project history and metadata.

D. Requires developers to manually track and manage different versions of their files using naming conventions and manual backups.

Explanation:
A distributed version control system (DVCS) like Git is best described as a system that ensures each developer has their own local copy of the entire code repository, including the complete project history and metadata. This decentralized approach allows developers to work independently, with full access to the project's history and files, and later synchronize their changes with others. Unlike centralized systems, DVCS does not rely on a single central server, which provides greater flexibility and robustness in collaboration.

Exam Code: GH-900 Q & A: 75 Q&As Updated: Apr 03,2026

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Exam Code: GH-900
Q & A: 75 Q&As
Updated: Apr 03,2026

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