2. Git and GitHub Basics (25-30%)

Phase 1 gave you the mental models; this phase puts them to work inside GitHub specifically. You'll see how individual, organization, and enterprise accounts scale a project from a hobby repo to a company-wide platform, how the GitHub Flow turns "branch, commit, pull request" into a repeatable team habit, how Markdown keeps every conversation on GitHub readable, and which client (Desktop, Mobile, or the web) fits a given task. This is the largest single domain on the exam — get comfortable here before moving on.

Think of this domain as the exam's center of gravity — it's the largest single weight bucket, so a shaky answer here costs more than almost anywhere else, which is exactly what the exam tests most heavily. ⚠️ Exam Trap: candidates often confuse an organization's role-based permissions with a personal account's simpler sharing model — the two behave differently enough to be worth its own question.