Thanks Mikalai and Hussain.
Prateesh, it took me about one and a half months to prepare for the exam.
But as background information, I should say that:
* Prior to the preparation period, I had been quite familiar with Fowler's (but not quite with Larman's), for I used Fowler's as one of the textbooks for my Intro to OOAD/UML classes (Yeah. I'm an instructor and actually quite embarrassed with the score
* I tried to study every topics in Larman's. Doing so was very time consuming and unnecessary, I think, if passing the exam had been the only goal. (I think Mikalai's quizzes could be used to assess which topics of Larman's are of higher importance with regard to the exam.)
Hope it's of some use. And good luck.