When my husband was studying for the CPA exams, he prepared for months. He memorized laws and rules and exceptions to those rules. He used flashcards, watched lectures and took simulated exams. He answered thousands of sample test questions.
Preparing for exams is as much about tactic as it is about knowledge. To conquer an exam, people learn to beat the test. They learn strategies. They take courses designed specifically to prepare them for these exams or they study on their own, for the tests.