CertPrep

Learn. Build. Certify.

Open-source certification prep labs for GitHub, cloud & DevOps exams — structured by domain weight, built for engineers who learn by doing.

CertPrep is a community-driven collection of certification prep repositories. Each repo maps to a specific exam and contains:

• Domain-weighted study notes — proportional depth to exam weighting
• Hands-on demo labs — step-by-step exercises with real CLI/API commands
• Practice questions — collapsible answers with explanation of why
• Quick-reference cheat sheets — printable, exam-day ready
• Exam metadata — objectives, glossary, domain weights, study time guides

No paywalls. No fluff. Just structured, open content.

More tracks coming. Have a cert you want covered? Start a discussion →

Every CertPrep repo follows the same layout so you always know where to look:

├── README.md               # Exam overview, quick start, study plan
├── CONTRIBUTING.md         # Contribution guidelines
├── QUICK-REFERENCE.md      # Printable cheat sheet
├── exam-metadata/          # Objectives, domain weights, glossary
├── docs/                   # One deep-dive study doc per domain
├── demos/                  # Numbered hands-on lab sequences
└── scripts/                # Automation patterns and API utilities

Domain weight = study time. If a domain is 36% of the exam, it gets ~36% of the content depth.

All docs include:

• Conceptual explanations tied to official exam objectives
• Real CLI commands and API examples
• Common exam gotchas and misunderstandings
• Practice questions with collapsed answers (test yourself first)

CertPrep is open to contributions from anyone preparing for or who has passed these exams.

• Found outdated content? Open an issue in the relevant repo.
• Want to add a practice question? Follow the question format and submit a PR.
• Have a better explanation? PRs for clarity improvements are always welcome.
• Passed an exam and want to add a new track? Start a discussion →

1. Fork the repo you want to improve
2. Create a branch: git checkout -b fix/brief-description
3. Make your changes following the content standards
4. Open a PR with a clear description of what changed and why

All contribution standards — question format, markdown style, accuracy requirements, and more — are documented in CONTRIBUTING.md.

All repos include a Last Updated date and the exam version they cover. Certifications evolve — if you spot drift from the current objectives, please flag it with a GitHub issue in the relevant repo.