Yes — module quizzes and the timed exams can all be retaken, and repetition is the point. The final exam draws 45 questions at random from an 80-question pool each sitting, and the two practice exams randomize as well, so retakes aren’t just re-reading the same 45 answers. Passing bars mirror the real thing’s logic: module quizzes at 70%, the timed 45-question exams at 80%. Sit all three timed exams before test day.
