Rocky’s Study Buddy is highly recommended, as you see, but for me I just used Compucram’s practice exams and made sure I was studying consistently everyday. I got to the point that I was familiar with every question in the question bank for those tests but on my actual exam there were certain things I had never seen. Not too many, but some. It’s just a matter of studying enough to where you’re comfortable with the lingo. In my mind as long as you have a good grasp on the different regulations you should be able to deduce any answer for the knowledge-heavy questions, too.