Make-up exams arranged by the college are very important. Usually, if you fail the course, you have to make up the exam, because if you don't take the exam, you will get zero points, so you have to make up the exam again, which not only takes up your own time, but also adds a burden to yourself, so you have to make up the exam.

But make-up exams are generally relatively simple, so don't worry too much.