Please see FAQ, there is a few mock exam. 310-080 is the old exam and does not available. The current web component exam is 310-081 (Servlet 2.4/JSP 2.0).
SCJA 1.0, SCJP 1.4, SCWCD 1.4, SCBCD 1.3, SCJP 5.0, SCEA 5, SCBCD 5; OCUP - Fundamental, Intermediate and Advanced; IBM Certified Solution Designer - OOAD, vUML 2; SpringSource Certified Spring Professional