Hi,
I appeared in the SCDJWS 6 beta exam on 4th September, most of the exam covers the JAX-RS and Security related questions. Following is what i think is the breakdown of topics covered with their percentage:
JAX-RS --> 40%
Security --> 20%
EJBs based web services --> 10%
JAX-WS --> 15%
Configurations --> 5%
XML Schemas --> 5%
Other --> 5%
There were total 168 questions and i had 4:15 hours to finish the
test. However, i finished it in 3 hours!. Exam is not very difficult if you have dome some preparation.
For preparation, i would say to read Ivan study guide, although it doesn't cover the most of the exam part (jax-rs and ejbs) but will be good help in other areas. This is the only book i read and all else i take advantage of my web services experience. There are other study notes and quiz made by Mikalai but that would need to be updated as well (my guess).
Shoaib