I think that having a large set of possible exams questions is a problem only if the exercises are too formulaic. If knowing the answer is as easy as memorizin

I think that having a large set of possible exams questions is a problem only if the exercises are too formulaic. If knowing the answer is as easy as memorizing 1A 2D …, then repeating exams is a problem. If exams are more problems than exercises, and you are able to solve most of them before the exam, then you've probably learned enough and the exam is mostly unnecessary.