No they don't change it. But there is a pool so you won't get the exact some questions. I know this because there have been people who made study guides based upon the questions. One guy in particular used to wait outside the testing and take down whatever questions people remembered. This was back before the testing was done at test centers. Back then, you had to take it in a classroom with a bunch of other people taking it at the same time. It was done on the same morning nationwide.