I failed my second attempt. I went up 100 points from the first time, but still came short. I took 4 networking classes from Devry, in which we worked from the books CCNA 1&2 and CCNA 3&4 Companion guides. Then I bought CCNA ICND and Intro. Those had CDs that had some really good sample tests on them. Can anyone recommend other CDs or is CCNA ICND Exam Certicication Guide v1.9 the best?