I can't believe you guys found the diagrams "hard". Are you kidding me? They were pretty straightforward if you ask me. I just took the hardware three weeks ago and the OS yesterday, and found them both boringly easy. The transcenders I used to practice with were ten times harder than the test itself. They'd ask things like "If johnny has a 6GB hard drive, and places a 10k text file on it, how many clusters will he be using?". I don't know about you guys, but I don't care how many sectors are in a cluster based on the partition size (and have never needed such info in a work environment). In the real test, I got asked "how many pins in a serial port?".... "point out the video card connector"....... "point out the floppy drive connector"...... "if bob forgets his win2k domain password, what should he do?". If you've been in IT for awhile.... glaze over a book, practice some braindumps or transcenders, and then take the test.
p.s. as far as legacy stuff goes, I didn't get asked a single DOS, WFW, Win3.x, WinNT 3.51, or win95 question. Maybe I was just lucky?