Today I am happy to say that I have passed SCBCD with 94%. I have prepared for the exam using HeadFirst EJB book and EJB Specs. HF EJB is very good for this exam preparation . It explained the EJB concepts very clearly.Even though I haven't posted most messages,I kept reading javaranch forum frequently in my preparation. I cleared most of my doubts by searching in the forum.I used mock exams in www.ejbcertificate.com site for my preparation.