how do you prepare for exams?what kind of test do you prefer

I prefer open exams because they are better at testing our abilities,but not our memory.I seldom prepare for exams,because I do not want to recite what the teacher or the textbooks tell us,I want to learn how things work.

意思是
你怎样准备考试？你更喜欢什么类型的考试，开卷还是闭卷？