uCertify questions

Hi everyone,

i'm studying hard to prepare myself for the scja exam. I'm studying from "scja certification guide" from Cameron Mckenzie's and i've just ordered the mock exam book of this author and i also buyed the one from "scja.de". But reading topics here in the forum i read a lot about uCertify software so i decided to download the demo version. So i started to do the free example questions and i see that these are not simililar to the ones on the mckenzie's book and sometimes they go more in deth on certain arguments (like for example THE DIFFERENCE BETWEEN THE VERSION 1.2 AND 1.3 OF J2EE). So i want to ask you, to whom has already done the exam, if the question that i would see in the exam will be more similar to the mckenzie's example or to the uCertify example.

Thanks to all for the help.