I am confusing to concentrate on SCBCD. Because I passed the scjp 1.4 with 77%. But I have found lot of mock exam (scjp) for prepares well and I have idea for concentrating some area like (garbage collector, Thread, collections totally 61 question) .In ejb, I am studying the HFEJB only. I couldn't find mock exam more to prepare hardly. Please any bodies suggest me.