I used the cccure questions and the Shon Harris practice test book. Both were okay for testing myself on facts and definitions, but they were not very much like the real exam. The exam questions were conceptual questions that wanted to know the best answer, first step, most important, etc. Some of them (hopefully the experimental ones) were badly written with no obvious right answer. Without giving away a real question, I remember one that was similar in form to:
Which animal would you most expect to find on a farm? a) zebra b) cow c) giraffe d) pig
Also, there are many scenario questions on the real test. Read the question(s) before the scenario. It really helps to already know what question you are being asked.