The exam was pretty easy, and the tricky questions were not a majority.
My preparation was:
1. "Pro EJB
Persistence API" book by Mike Keith & Merrick Shincariol, Apress
2. "Enterprise JavaBeans 3.0" book by Bill Burke & Richard Monson-Haefel, O'Reilly
3. Mikalai Zaikin's SCBCD 5 study guide
4. EJB 3.0 and JPA 1.0 specifications
5. Mock tests by Whizlabs - i did only 2 out of 5 because yesterday i had severe heart problems, and today, even during the exam, i wasn't feeling well.
Good luck to everyone!