I use to have a professor that actively encouraged us to review old tests, question banks, friends, anything we could get our hands on. Hell his tests were even

I use to have a professor that actively encouraged us to review old tests, question banks, friends, anything we could get our hands on. Hell his tests were even open book/notes. The tests were genuinely difficult. You could pass by looking at the material because some of the questions were just lecture examples with numbers changed. But to really ace the test you needed understanding of the material.