I 've passed 70210 and during the exam I saw that many many questions come from by briandumps.
Pavlov wrote: Congrats on your pass RusS - Stick with the MS Press books and technet to fill in any gaps or questions you have as a result of reading. Good luck with Security+.
bitterenuff wrote: I had hired several people with multiple certifications that used those "tools" and found that most of them did not know even the basic aspect of useing the system. My best advice is to get practice on machines.