Methodology

How this site is written

Cert Notes is written by a practicing AWS engineer with several years of production experience and the Cloud Practitioner and Solutions Architect Associate certifications. Everything here is written by hand — not scraped, not spun, not bulk-generated. The whole point of the site is the part exam dumps leave out: what the exam wants you to answer, and what actually happens when you run the service in a real account.

How service notes are written

Each service page starts from a plain description of what the service does, then adds the two things you can't get from the AWS console or a marketing page: the exam triggers — the phrasing that tells you a question is really about this service — and the in-production notes — the failure modes, defaults, and gotchas that only show up once you're operating the thing. Those notes come from experience, not from paraphrasing documentation. If a page can't say something useful about how the service behaves in production, it doesn't get published.

How questions are written

Every question is either written from scratch or drafted with AI assistance and then rewritten and verified by hand. No question is copied from another site, a forum, a question bank, or exam material — an earlier collected set was scrapped entirely for exactly that reason. Each question includes an explanation of why the correct answer is correct and why each wrong answer is wrong, because "why not B" is usually the thing you're actually trying to learn.

Verification against AWS documentation

AWS changes limits, defaults, and service behaviour constantly, and study material goes stale fast. Every service and question entry carries a verification date and a link to the specific AWS documentation page it was checked against. You'll see this at the bottom of each page: "Verified against AWS documentation · [date]." It tells you two things — that a human checked the details against the current source, and exactly how fresh that check is. If a date looks old, treat the specifics with suspicion and check the linked source yourself. That's the honest version of a study site, and it's the standard the whole thing is held to.

Update cadence

New content is published deliberately slowly — a small number of reviewed pages and questions each week, rather than large batches. Slow-and-verified is a feature, not a limitation: it's what keeps every page accurate and worth reading. Existing pages are re-checked and their verification dates updated as AWS changes things.