Just took the core myself and scored a 921,test took about 10 mins with the 20 question min.The questions were suprizing easy...no IRQ, Address's, a lot of printer questions and 3 identify the picture (thats what I missed, a floppy port,but the picture was terrible looked like a child did it LOL) A couple of power questions ,a processer question.Used Mike Myers 4 in 1 and Passport books to get ready. Taking OS in a couplof weeks. Tha questions in MM 4 in 1 book were very much like the real test.
Good Luck Bill