I've noticed in doing the practice tests that the categories don't mean anything. Often after completing I do a review of the test questions to make sure I understand what the question was asking and to help me figure out what I need to do further research/study on. I noticed that several questions that were supposed to be about roaming, had nothing to do with it and it seemed to be similar with the other categories too. Especially problematic were that I got 9 questions in one test on WPS which of course I just ignored, but still... I know you will remove those when you are finished updating. Anyway thanks for this resource as its been invaluable in helping me to feel like I am ready and I know the necessary material. Just thought the category thing was a bit confusing when it didn't relate to what the question was asking.