I passed this darn exam with the help of Khalid mughal , not a bad book at all , and some cool links. used alot of mocks and a lot different study guides...
http://www.Javaranch.com
http://java.ditmas.net
both of these links are real cool...
there was alot of similar questions in my exam from these dumps but not alot of exact ones , so i would say u should really know ur stuff but please do go thru these dumps ;), for the packages hierarchys i recommend the second link which is great ! i passed and u r next hahahha
Best of lUCk every1