Lunchbocks wrote: » Also, use Technet in addition to the sticky's. When you take a practice test, take all of the answers you missed and the ones you guessed at and look them up in Technet. The books alone will not get you a passing grade. CBT Nuggets are a great help, but Those along with Technet will take you further. The 640 exam is a very tough exam. Averaging 75 on practice tests is not good enough to pass this exam. Also, take a look at the study guides I posted here to see if they will help. Good luck!