Exams test students' knowledge and abilities in several ways, including writing speed, understanding questions, coping with pressure, and applying and analyzing concepts. They also allow instructors to verify that work is the student's own. Students can fail exams due to poor revision techniques or exam skills, despite thorough studying. Effective revision includes making summaries, flashcards, diagrams, songs/rhymes, and practice exams. During exams, students should read instructions carefully, manage time well, write clearly, and plan answers before writing to demonstrate their understanding.