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Free GH-200 GitHub Actions certification guide for 2026: the five-domain January blueprint, 100-minute exam, $99 fee, retake rules, and a 4-week study plan.
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GitHub Foundations Exam Guide 2026: GH-900 Prep That Uses GitHub
Free GitHub Foundations GH-900 exam guide for 2026: current 100-minute format, 7 official domains, hands-on repo drills, and free practice questions.