i typed a bunch, but it disappeared. I will try again. For example I had a topology descriptive geometry solving exam, I had not had time to learn how it was done due to job/life events.

I used my spatial sense to sketch up the solutions, because I didn't know the methods well enough to actually solve it. Got a great mark on the exam, prof gave me kudos in front of class. So while my faked end solutions passed the check, had the prof asked for the projection stage sheets to be turned in (showing how you work through the problem) I would have failed.

Right answers don't mean you know the material. And by you I mean the plural you, not you personally.

The profs are aaking to see work to see if you know the principles. People can arrive at an answer that looks right by doing the wrong things