Quiz/Make-Up Quiz

I went with the extra-variables route just to hedge any bets. I wasn't sure if the question variables would retain their values between sessions or not. 

Although, the Back button issue brings up another good point. If you would like the learner to navigate backwards, then the separate variables would be good for that, because you could just assign those variables at the end of the quiz. Unfortunately, a retest would require a disabling of the back button.

Kevin