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 progress. Exams often have specific formats, such as multiple-choice questions, essays, or problem-solving tasks. The results of an exam can influence a student's grades and academic standing. Additionally, exams may be standardized, meaning they are administered and scored in a consistent manner across different test-takers.