I taught college CS for 10 years before moving to industry. Cheating wasn't a huge problem, but I did run have some issues. Gave a makeup exam to one student w

I taught college CS for 10 years before moving to industry. Cheating wasn't a huge problem, but I did run have some issues. Gave a makeup exam to one student with an altered programming problem than the original exam. The student answered the original problem, not the one on the exam they was given. That made it very clearcut. I also had a written requirement that students must be able to explain their homework programs to me. Had a few that couldn't explain what parts of "their" own program was doing.