I've inherited a Moodle 2.8.3+ install, we have four exams c/w preliminary practice quizzes and a total of ~1000 questions in the Question Bank. Each exam has 100 'randomized' questions.
Are these exams' questions truly randomized, though? In other words, does each person writing an exam get a truly unique set of questions from the bank or is a typical exam something like, say, one of ten different sets of questions, randomly selected?