I'm studying for that same exam right now, hoping to take it within the week.
From what I've read here, you must know RIS, the steps involved, and the protocols needed.
Please let me know how you did and if you thought it was hard or not.
Everyone here says that if you have administered 2K at all you wshouldn't have any problems.
I myself am using the Self Test along with the Mike Meyers book, and all my instructors have told me that the Self Test is actually harder than the actual exam.