For those of you trying to save thousands of dollars by skipping ASE classes, it's not going to happen with this book. I took the Compaq Systems Technologies test today, and at least a third of the questions were not referenced in this book. ( Especially the newer technologies such as the Profusion chipset) If you could magically go back in time and take the older exams (10-056 etc.) this book may be a bit more useful...