I have a very poor opinion of the Whizlabs practice exams, for some reason
alot of people like them.
I used them only once for the SCMAD and they didn't help much. I however did use K & B for SCBCD and their book was fantastic, even though I did not read all the sections and read it quickly once.
My advice is ignore Whizlabs and focus more on K & B.
MCPD (Enterprise Application Developer, Windows Developer, Web Developer - .NET 2.0), MCTS (Windows Apps, Web Apps and Disbributed Applications - .NET 2.0), MCITP (Database Developer & Business Intelligence Developer - SQL Server 2005), MCAD, MSCD.net, SCJP 5, SCWCD 1.4, SCBCD, SCMAD, SCDJWS, SCJA