How it works
What a course actually is
Seven things, not one.
A thousand practice questions are easy to come by. That's the problem, not the product. A wrong answer delivered confidently is worse than no answer at all — you walk into the exam sure of something that isn't true. So the interesting question was never how many questions we have. It's where each one came from.
Rule one: anchored to the source
Every question and every lesson traces back to the vendor's own study guide — the current version, open in front of us as we write. Not a forum thread. Not someone's memory of last year's exam. Not a syllabus that was accurate in March and quietly stopped being true in October.
It sounds obvious. It isn't: most prep out there can't tell you which line of which document a given question came from, which is exactly why so much of it is subtly, confidently wrong. Every claim we make gets checked against the documentation before it reaches you. That's the one rule we don't bend.
Wrong answers come from the same page as the right one. A plausible distractor is a real value from the real documentation, altered — not a number we made up. That's what makes practice feel like the exam instead of a quiz.
Ten questions per concept, on purpose
Each concept gets exactly ten questions: three straightforward, four that make you think, three that catch you if you only skimmed. You score out of ten and need seven to move on.
The ratio isn't decoration. All-easy questions leave you confident about things you haven't actually learned. All-hard questions just wear you down. The mix is what tells you honestly where you stand.
Read it, hear it, be asked about it
Every concept exists as written prose you can actually read, as narrated audio for the commute, and as questions that check whether it stuck. Same material, three ways in — because reading something once is not how anyone remembers anything.
There's also a tutor you can ask when you're stuck at 11pm, and it knows which concept you're on. It answers within your course rather than free-associating about the cloud in general.
Your review comes back when you're about to forget
What you got wrong returns on a schedule built around forgetting, not around the calendar. Get something right three times running and it stops bothering you. Get it wrong and it comes back sooner. The point is to spend your study time on what you don't know yet.
When the exam moves, the content moves
Certifications change. Vendors add services, retire others, and re-weight their domains — usually with a changelog and rarely with a headline. Prep that was accurate in March is quietly wrong by October, and most of it never gets fixed.
We watch the study guides for changes and rewrite what actually moved — the affected concept, not the whole course. You'll see what changed and when, in plain language.