Law school exams can take many different forms. Some exams rely on a working file that is given to you at the exam upon which many questions are based. Others are long fact patterns raising many different legal issues and culminating in a single question, such as who is liable? Is the contract valid? Others are a combination of multiple choice, short answer, and essay questions. Some are entirely multiple choice. Some professors allow students to consult with any book or handwritten notes the student wishes to bring and others make exams completely closed book. 

Regardless of the format of your particular examination, you will need to understand and know how to apply the law that you have studied. You will need to know any legal rules that you have learned in great detail and will also have to have a braoder and more conceptual understanding of your subject. Thus, most of your studying should be the same whether the test is multiple choice, essay or short answer. Many people form study groups in order to discuss certain issues and review the material. Other people choose to study alone or with one other person. You have to determine which method works best for you, but in any case you should review your notes and prepare outlines if possible. Then you should always try to do some practice exams, preferably in the form your professor will be using.