College entrance exams are standardized tests that help colleges and universities assess the academic readiness of prospective students. These exams, such as the SAT and ACT, evaluate skills in areas like math, reading, and writing. Many institutions use these scores as part of their admission process, alongside high school grades and other application materials. Students typically take these exams during their junior or senior year of high school. Preparation for college entrance exams often includes studying specific content areas, taking practice tests, and sometimes enrolling in prep courses. Performing well on these tests can enhance a student's chances of gaining admission to their desired college or university.