Once the person passes the Bar Exam, he is admitted to the state’s bar. In most of the nation's states and territories, the law exam takes place over two days, sometimes three. The exam, generally, consists of essay type questions.
Some States use the Multistate Essay Examination (MEE), provided by the National Conference of Bar Examiners (NCBE)
Some States use the Multistate Bar Examination - multiple choice standardized test, crafted and sold to partaking state bar examiners by the NCBE.
Some states set their own questions or use a bit of both.