Exams work a bit differently at Illinois than in high school. In most cases (especially for your larger classes), exams will take place in the evening rather than during your regular class time. The class will be distributed among several different lecture halls across campus to allow everyone taking the class to complete the exam at the same time. In the event that you are not able to take the exam at this time for a valid reason, the professor will allow you to take a conflict exam. A conflict exam is an exam that covers the same material and is of the same difficulty as the regular exam. The only difference is that the questions are different. This is so students do not simply get all of the questions/answers from friends who already took the regular exam. If you are sick and need to take a conflict exam, make sure to visit the medical facility at McKinley to get a doctors note (I don’t think the university accepts notes from external hospitals except in special circumstances).