Difference betwween CX-310-081  and CX-310-083 SCWCD exam

Hi,
I'm planning to take SCWCD certification.I got confused between the veriosn CX-310-081 and CX-310-083. Is there any differnece in these two exams other than the time limit and number of questions. I had a look at the objectives of the two exams at SUN site, but couldn't find any differnece. Is CX-310-083 SCWCD5 really based on J2EE5 version which includes servlet 2.5 ,JSP 2.1 etc. I did a lot of research over iternet and found in some of the sites that CX-310-083 SCWCD5 is based on servlet2.4 and JSP 2.0.Is it right?I'm really confused.Please anyone let me know the real differnece.I need to clarify this from SUN otherwise my might run into problems while writing the exam.
Any help is really appreciated.
Thanks

The CX-310-083 exam is indeed based upon J2EE 5. The other exam is the earlier version of J2EE and moreover I believe Sun is only offering the eariler exam until the end of this month. Then it will not be offered, but those already holding vouchers have one year to take the exam.
You can read about the J2EE 5 SCWCD exam here
http://www.sun.com/training/catalog/courses/CX-310-083.xml

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