On feb 2 2013 i have become a Oracle certified Professional Java EE 5 Web Component developer, Now i am thinking about to become a Certified Business component developer, for this i have take a look at "https://coderanch.com/how-to/java/ScbcdLinks" For Some amazing Books Like "HEAD FIRST SERVLET and JSP". Here i found the confusing stuf
EE6 EJB (1Z0-895) :Java Platform, Enterprise Edition 6 Enterprise JavaBeans Developer Certified Expert Exam This is latest version of the exam that covers only Enterprise JavaBeans (EJB 3.1)
EE6 JPA (1Z0-898) :Oracle Certified Expert, Java Platform, Enterprise Edition 6 Java Persistence API Developer certification This is also latest version of Exam that is in parallel with EE6 EJB (1Z0-895) .However,It covers developing Java EE 6 Enterprise applications using JPA.
SCBCD 5.0 and SCBCD 1.3 are older version of exams and covers both EJB and JPA but doesn't include much in detail.