I passed a few weeks back and had lots of questions on controller capabilities (number of AP's supported etc,etc), licenses, mobility domains, a few CLI commands and a lot of questions about which role will be assigned given a certain set of conditions...such as user authentication or machine authentication conditions.
My course books from the Mobility Bootcamp, The OS 6.1 User Guide and the Study Guide Helped a lot!. Some helpful soul elsewhere in the airheads forum has answered the even numbered questions in the Study Guide which also gives you 13 answered examples of the type of exam question. Similar if not exactly the same came up in the live exam I think. Also my company had a demo kit so access to a controller to play with configs/Web GUI helped but is not essential!
I am guessing there are several hundred exam questions in the pool and when you sit the exam it randomly picks 75. So my experience will differ to yours as randomly generated.
The exam presents 75 questions in 90 minutes.
Passing score is 75%.
Good Luck!