Preplogic 201 practice tests question

in Security+
I'm preparing for my sy0-201 security+ test that i have scheduled next week and have mainly used the "get certified get ahead book" and its practice test.
For good measure i decided to buy the preplogic test sim as well. so far i haven't been doing extremely well on these practice test due to the fact that they seem to cover a lot of material that wasn't emphasized in Darril Gibsons book.
my question is, since everyone claims that Darrils book is the ONLY thing you need to pass this test, is this unfamiliar material fluff that i'm not necessarily going to see on the test, or should i be worried?
For good measure i decided to buy the preplogic test sim as well. so far i haven't been doing extremely well on these practice test due to the fact that they seem to cover a lot of material that wasn't emphasized in Darril Gibsons book.
my question is, since everyone claims that Darrils book is the ONLY thing you need to pass this test, is this unfamiliar material fluff that i'm not necessarily going to see on the test, or should i be worried?
Comments
Conngrats!! Did you find it hard or challenging? I plan on taking it within the next 2-3 months
I'd say that, like most people on this forum will tell you, Darrils book is all you need to pass the test. However, I wouldn't recommend strictly using it. I used several different practice test sources to help prepare me and i think that helped a lot. I read "get certified get ahead front to back multiple times, and there were a few things on the test not covered. I'm assuming that's why CompTIA expects you to be certified in network+ and have 2+ years of security experience when taking Sec+.