Alloy · How it works
Six things, one job: getting you through the exam on the first attempt. Every one of them exists because a specific way people fail is worth designing against.
The first thing you do is a short diagnostic, spread across the areas your exam covers in the proportions the exam uses. It measures what you can do rather than asking how you feel about it, because how people feel about a topic does not predict how they score on it.
No survey, no "rate your confidence" — just questions that tell us what to do next.
Your exam does not ask for definitions; it drops you into a situation and asks what you would do. So the practice is built the same way — you work through realistic situations end to end, in isolation, so you can see which ones you keep getting wrong.
You cannot be caught off guard by which topics come up if you have drilled all of them.
Getting a question wrong tells you nothing on its own. Each question explains why the right answer is right and why each wrong one is wrong — including the ones that looked reasonable, which are the ones that cost people the exam.
The goal is to stop being surprised on exam day, and surprise comes from the near-misses.
Material you studied three weeks ago is the material most likely to fall over on exam day. Review is scheduled by when you are likely to lose something, so the things closest to slipping come back first.
Studying more is easy. Studying the right thing at the right time is what moves a score.
Where a course includes hands-on work, you build the thing and submit it. It is reviewed against what that exercise is actually asking for and against the mistakes people usually make on it, and you get specific feedback rather than a mark.
Reading about a pattern and having built one are different kinds of knowing.
The point of all of it is one decision: is it worth sitting the exam yet. Your readiness is tracked as you go, so you book when the work says you are ready rather than when the calendar does.
One sitting, real money, and a wait if it goes wrong — worth knowing first.