If you have experience in EJB's then yes. If not start with EJB 3.0 in Action. It is a good starting point. Later go for the O'Reilly's book. You might also try considering some commercial mock exams before sitting for the actual test.
SCJP 1.4, SCWCD 1.4 - Hints for you, Certified Scrum Master
Did a rm -R / to find out that I lost my entire Linux installation!