The purpose of college examination is to test a student's academic performance and learn more knowledge. Therefore, whether the examination room is monitored or not, we should aim at studying hard at ordinary times instead of focusing on cheating and what to do after being caught cheating.
If the teacher finds you cheating in the college exam, the teacher will usually ask you to stop answering the questions and confiscate your test paper. Under normal circumstances, as long as you don't resist and listen to the teacher, the teacher generally won't report your cheating to the academic affairs office.
If you don't listen to the teacher after being found cheating, or the teacher is a teacher with strong principles, you will generally be punished by the school for a period of time, and there is the risk of canceling your degree certificate. But if you behave well in school from now on and don't make mistakes, the school will basically issue you a degree certificate when you graduate.