just barely passed but I did pass. I have a few years of
EJB 2.1 and one year of EJB 3 experience with Seam app dev.
I used JSR220, bill burke ejb3, ejb3 in action, mastering ejb3 and mike keith JPA books.
I also used the Sun SCBCD exam prep as well as uCertify.
I studied for dozens of hours in the past 3 months.
I have no clue how people score higher than 80% on this exam. It's very difficult and tricky.
You basically need to memorize and understand as much of JSR220 as possible.