Self-test
There are questions in the pool. Each run draws a different random set and shuffles the answer positions, so you can't lean on a pattern. Get one wrong and it comes back a few questions later.
Mock exam
80 questions drawn at random from the pool, 8 from each lecture. 55 % to pass (44 correct). Questions you haven't seen yet or got wrong are favoured over ones you already know. Answers are revealed at the end.
Practice
Pick lectures and see the explanation after each answer.
Weak spots
Where you stand
not seen yetright last timewrong last time