Identify correct and incorrect statements or examples about implementing a session bean as a web service endpoint, including rules for writing a web service endpoint interface and use of the @WebService and @WebMethod annotations.
But in my books - "Enterprise JavaBeans 3.0" written by Bill Brook & Richard Manson-Haefel(I know this isn't exactly book for this exam) there is half chapter about JAX-RPC.
How complex are questions about WebServices? JAX-WS?
All questions concerning WebServices in mock exams and the real exam that I have seen were quite elementary and could be answered by knowing how to use @WebService and @WebMethod. No knowledge of the underlying API's (JAX-WS in EJB 3.0, JAX-RPC in EJB 2.1) was required.
But there could be questions on what API's an EJB 3.0 container must make available. So it's good to know that JAX-WS and JAX-RPC are available.