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).
Since you have taken SCDJWS 6.0 Beta exam, can you tell, if JAX-RS from J2ee 6.0 Tutorial would be good enough to prepare. Also, regarding the security, did they add anything more than compared to 5.0 version, which is already covered in Ivan's notes.
Were there any questions on coding of ws-security concepts, XMLEncryption, XML Signature, SAML, XACML etc in version 6.0