Please provide me java certification questions with the detailes explanation for each questions answers.
This may or may not satisfy your request, but\nwhen I was studying for the certification, I\nfound the mock exams (with answers) pointed to by:\n\n   http://www.javaranch.com/mock.jsp\n\nto be extremely useful.\n\nNote that most of the study guides (ie. books) for\nthe certification typically include lots of practice\nquestions (with answers and explanations).  You can\ncheck Amazon for the appropriate books.
I am not sure how to configure Sun's Application Server, but why not try Tomcat? it's downloadable from http://tomcat.apache.org/, it's free, and it's very easy to install and use