Thank you Mikalai Zaikin for your wonderful notes.
Thank You All for your help and support.
About the exam - It is easy if you study Specs and Miaklai's guide really well after you have studied EJB 3 from EJB3 in action/pro ejb 3 books.
Here is wht I did, I studied from EJB 3 IN ACTION first 11 chapters, then I reviewed them. Then I studied first 11 chapters of Pro EJB 3 and then reviwed them. I did look into o'reilly EJB 3.0 book chapters 11 to 17.
Then I started studying specs, I went thru the core and persisternce specs once and then took up mikalai's notes. and then reviwed from them before exam.
I took 4 weeks studying only in the evenings after work and mostly all day on weekends. for exam sims, I used whizlabs and enthuware both. Whizlabs give you good confidence and enthuware is very close to the real deal.