Explain Git and GitHub
Tell Git from GitHub, describe commits, branches and the GitHub Flow, and use Markdown in issues and pull requests.






























GH-900 is a foundational GitHub Certified exam for any GitHub user, developer or not, who wants to show they understand Git. Git and GitHub basics weigh most, 25–30%, then repositories, collaboration, Actions, Copilot, Projects, security and community. The page names no prerequisites, the exam runs 100 minutes, and the credential does not require renewal.
Tell Git from GitHub, describe commits, branches and the GitHub Flow, and use Markdown in issues and pull requests.
Know a repository’s key files, then collaborate with issues, pull requests, discussions, wikis and Pages.
Describe what Actions, Copilot, Codespaces and Projects each do for a team.
Describe 2FA and passkeys, roles, and branch protection, then open-source engagement, forks and InnerSource.
We design this course ourselves. Microsoft runs the exam and issues the credential, and LUNARTECH is independent of Microsoft.
Everything on GitHub rests on Git, so start there. You learn why version control exists, how commits, branches and merges record the history of a project, and how Git differs from GitHub.
You build A local repository with a few commits and a branch, merged back into the main line.
GitHub is a place where people and teams work together. You set up an account, learn how organizations group people and projects, and follow the GitHub Flow from branch to merged change.
You build A profile and a small organization with one repository, ready for a team to work in.
A well-kept repository tells a newcomer what it is and how to help. You create a repository, add the files that explain it, set visibility and templates, and read its insights.
You build A repository with a README, a license, a code owners file and an issue template.
Collaboration happens in conversations about work. You raise issues, open pull requests, review and merge them, hold discussions, and tune notifications so you hear what matters.
You build An issue resolved by a pull request that has been reviewed and merged.
Teams need to write things down. You format text in Markdown, share snippets in Gists, keep knowledge in a wiki, and publish a simple site with GitHub Pages.
You build A project README in Markdown, a wiki page and a small site published with Pages.
GitHub does more than store code. You see what Actions automates, what Copilot suggests and how its plans differ, and how Codespaces and dev containers give everyone the same ready-to-use environment.
You build A repository with a simple workflow, opened and edited in a codespace.
Work that is not organized gets lost. You plan with GitHub Projects in table and board layouts, sort work with labels and milestones, and read project insights to see progress.
You build A project board that tracks a small set of issues with labels and a milestone.
Even a first repository needs protection. You secure your account with two-factor authentication and passkeys, set roles and visibility, protect branches, and see what organization and enterprise administration adds.
You build A repository with branch protection and role settings that match a small team’s needs.
GitHub is also where open-source projects live. You learn how to find projects, fork and contribute to them, support maintainers, and apply the same habits inside a company through InnerSource.
You build A fork of a public repository with a small improvement proposed as a pull request.
One small project joins the course. You create a repository, set it up properly, track work, make changes through pull requests, secure it, and invite others to contribute.
You build A small, documented and protected repository with tracked work and a merged pull request.

Certifying body · Independent of LUNARTECH
Microsoft publishes its exam outlines and runs its certification program through Microsoft Learn. Exams are delivered through Pearson VUE, and Associate, Expert and Specialty credentials renew each year through a free, unproctored online assessment. LUNARTECH is independent of Microsoft.
Aimed at GitHub users who want to validate their grasp of foundational topics, products and concepts. The page names no prerequisites.
Ten modules, designed by LUNARTECH, at your own pace.
Microsoft runs the exam and issues the credential, so you register and book directly with them.
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No single job owns it. Here’s where each role leans hardest, and where its work ends up.
Branches and pull requests are how a team stays in sync. Know the flow before you rely on it.
Git and GitHub, Repositories, Collaboration, Modern practices
Software development teams, Open-source projects
Issues and Projects are where plans meet code. Labels and milestones keep them readable.
Collaboration, Projects
Product teams, Software development teams
A fork and a clear pull request go a long way. Know the repository’s key files first.
Git and GitHub, Community
Open-source projects, Education
Roles and 2FA protect every repository at once. Branch protection keeps main safe.
Security, admin
Enterprise IT, Software development teams
Notebooks and models belong under version control. Git gives you history and a way to share work.
Git and GitHub, Repositories
Software development teams, Education
Docs live in repositories, next to the code they describe. Pull requests are how you review and publish them.
Collaboration, Projects
Product teams, Enterprise IT
Issues and Projects track the work you used to chase. You see progress without a status meeting.
Projects, Collaboration
Product teams, Software development teams
Your first contributions happen in public repositories. Fork, branch and pull request are the habits to build.
Git and GitHub, Community
Education, Open-source projects
Branches and pull requests are how a team stays in sync. Know the flow before you rely on it.
Over 10,000 students trust LUNARTECH
Understand systems all the way down. Build the ones others rely on.
Understand what the data says. Build models that hold up.
Understand the papers. Build on them, and take the work further.
+340%growth in open roles requiring AI skills
Open roles: Built In, Greenhouse, LinkedIn.
Typical salaries: Glassdoor, Levels.fyi, Payscale, Indeed, Ravio, JobRise, U.S. BLS. Military: 2026 U.S. basic pay, drone officers with aviation incentive pay.
Updated November 2026.
Need help? These answers cover most of what people ask before they start.
No. Microsoft issues it. LUNARTECH is independent of Microsoft, and its names and marks belong to it. When you finish a course of ours, you earn a LUNARTECH certificate of completion for that course.
No. We design this course ourselves, around what the exam covers. Microsoft has no part in it, and you still register and book the exam directly with Microsoft.
100 minutes, proctored, in English, Spanish, Portuguese (Brazil), Korean, Japanese. The passing score is 700 or greater.
Aimed at GitHub users who want to validate their grasp of foundational topics, products and concepts. The page names no prerequisites.
Does not expire. Microsoft’s policy for fundamentals exams offers no recertification.
We last reviewed it on 5 November 2026, from Microsoft’s own pages. Details change, so check the official page before you book.
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Show you know how GitHub works, from commit to community. Start with a free trial, or enroll in a plan and work through the course at your own pace. Microsoft runs the exam and issues the credential.
LUNARTECH is independent of the vendors and certifying bodies listed here. Their names, exam titles and marks belong to them, exams are run by them, and credentials are issued by them. Reviewed 5 November 2026. Catalogues change often, so confirm the details on the official page before you book.