An exam is a formal assessment used to measure a student's knowledge, skills, or understanding of a particular subject. Exams can take various forms, including written tests, oral presentations, or practical demonstrations. They are commonly used in educational settings, such as schools and universities, to evaluate student performance and determine grades. Exams can be standardized, meaning they are administered and scored in a consistent manner across different test-takers, or they can be teacher-created, tailored to specific course content. The results of an exam often influence a student's academic progress and can impact future opportunities, such as college admissions or job prospects.