1.2 Domains, Scoring, and Candidate Profile

Who should sit GH-900

The official audience profile is the sentence you should be able to paraphrase on test day. Candidates should have foundational knowledge of GitHub and its core features. That includes understanding Git, repositories, collaboration tools, project management, and modern development practices. The exam is designed for non-developers, developers, and all GitHub users seeking to improve proficiency with GitHub fundamentals. Microsoft Learn labels the credential Beginner. There is no listed prerequisite exam, no required job title, and no requirement that you write production code.

That audience sentence is doing real work. A project manager who files issues, a computer-science student who has pushed one repository, a first-week intern, a technical writer, a support engineer, and a junior organization admin can all be in scope. GH-900 tests whether you can name and place GitHub's surfaces correctly — Git versus GitHub, GitHub Flow versus Git Flow, Issues versus Discussions, github.dev versus Codespaces, Copilot for Individuals versus Business versus Enterprise — not whether you can implement a custom merge driver.

Microsoft Learn also chips several roles onto the credential page (Administrator, App Maker, Developer, DevOps Engineer, Solution Architect). Treat those as search facets, not as a closed club. If you only study the Administrator path (teams, Enterprise Managed Users, Copilot policy) and skip GitHub Flow, you will be underweight on the largest domain. If you only study the Developer path (Actions, Copilot, Codespaces) and skip Sponsors, Marketplace, and InnerSource, Domain 7 can still surprise you.

The January 2026 seven-domain outline

The GH-900 study guide's skills at a glance as of January 2026 are seven weighted domains. Older six-domain PDFs are leftover from before the significant January 2026 rewrite.

Domain 1 is the heavyweight. If a study week ignores Git versus GitHub, GitHub Flow, Markdown, account types, Desktop, and Mobile, you are ignoring up to nearly a third of the exam. Domains 5 and 7 are smaller, but they are not optional trivia: Projects layouts, InnerSource, Sponsors, and Marketplace still appear as named objectives. The four 10–15 percent bands (repositories, collaboration, modern development, privacy/security/admin) are where product-surface mix-ups live — fork versus template, gist secrecy versus private, github.dev versus Codespaces, EMU limits, Copilot plan names.

The study guide also warns that the bullets under each skill illustrate how Microsoft assesses that skill; related topics may appear. Most questions cover general availability (GA) features, but the exam may include Preview features if they are commonly used. That is why Copilot agents, Agent Mode, and multi-model support belong in a 2026 study plan even if your workplace has not enabled them yet.

Scoring: 700 is not 70 percent

The GH-900 study guide points at Microsoft's exam scoring page: a score of 700 or greater is required to pass. Technical exam scores are reported on a scale of 1 to 1,000. Because the score is scaled, 700 may not equal 70 percent of the points. Passing is based on the knowledge needed to demonstrate competence and on the difficulty of the questions on your form. An easier form requires more raw points; a harder form requires fewer. That is why a blog that says pass at 70 percent is teaching the wrong mental model.

Microsoft's scoring rules that matter on GH-900:

• There is no penalty for guessing. A wrong answer simply earns no point; nothing is subtracted. Blank items are wasted points.
• Multi-part questions usually award one point per correctly answered component. You can earn all, some, or none of the points on that item.
• Some questions may be unscored. They gather data to improve the exam. You will not know which ones they are, so treat every item as live. GitHub Learn's exam-family description (60 scored multiple-choice plus about 10–15 pretest items) is the GitHub-side version of that same idea; Microsoft Learn still does not print a live GH-900 item count.
• For most exams, you see a pass/fail result within minutes. The score report also appears in your Microsoft Learn profile, typically within 24 hours, when you sign in with the same personal MSA you used to schedule.
• The report shows a numeric overall score, pass/fail, and a bar chart by skill area. Shorter bars are weaknesses. You cannot add the bars together to reconstruct percent correct, and Microsoft does not tell you which items you missed.

If you fail, use the bars the way Microsoft intends: restudy the short bars and the high-weight domains. Domain 1 at 25–30 percent is still the cheapest place to buy points on a retake. A zero on a tiny skill area is possible because some areas have few items; it is painful, not a scoring glitch.

Candidate profiles and how each one fails

Picture four people who all have a reason to sit GH-900 — and a predictable blind spot.

1. The pull-request native. Jordan merges ten pull requests a week, so GitHub Flow feels obvious. Jordan has never opened GitHub Projects, cannot explain Copilot Business versus Enterprise, and has never heard of Enterprise Managed Users. Domains 4, 5, and 6 are the risk.
2. The project manager. Priya lives in Issues, labels, and Projects. She still calls GitHub a version control system and has never distinguished Git (the distributed version control system) from GitHub (the collaboration platform). Domain 1 will punish that shortcut.
3. The organization admin. Sam can recite repository roles and 2FA policy. Sam skipped Markdown in pull requests, GitHub Desktop versus Mobile, and github.dev. Domain 1 plus the modern-development band are thin.
4. The open-source contributor. Alex knows forks, Sponsors, and Marketplace. Alex has never configured branch protection or organization-wide Copilot policy. Domain 6 is the surprise.

The fix is the same for all four: overweight Domain 1, then cover every 10–15 percent band, then deliberately study the two 5–10 percent domains instead of hoping they are noise.

Validity, renewal, and the January 2026 change

GitHub Learn states that GitHub certifications are valid for 2 years. You renew by retaking the exam, not by clicking a Microsoft Learn yearly quiz. Microsoft associate, expert, and specialty certifications expire annually and can be renewed with a free online assessment on Microsoft Learn. That annual model is for Microsoft role-based certs. Do not say GitHub Foundations expires every year, and do not say it is valid for three years.

The study guide changelog is the other date you must carry: this exam changed significantly in January 2026. New or newly emphasized objectives include Copilot agents, Agent Mode, multi-model support, EMUs, organization-wide Copilot policy, and github.dev versus Codespaces. If your outline still has six domains, omits Explore the GitHub community, or still talks as if PSI and a 70 percent bar are current, throw the outline out and start from the GH-900 study guide.

Scenario: the 68 percent myth

Jordan hears that 700 means 70 percent and aims to memorize 70 of 100 trivia facts. On a scaled exam, a harder form can pass with fewer raw hits and an easier form can fail with more. Jordan's score report will not list missed item IDs. Competence by domain — especially Domain 1 — is the only strategy that maps to a 700.