Thanks Giri and Naina for ur quick response.
It has been a long time since I brushed my XML skills...shall have a quick look at w3schools before trying the exam tomorrow...
As for Leo, there is this book called
"Essential XML Quick Reference" - Aaron Skonnard, Martin Gudgin
This has gained positive reviews from members who have passed the certification. I think it is a good book. They have a free electronic version at this address...
http://www.developmentor.com/technology/developmentorseries.aspx Check it out....
Best of luck with ur exam preparations....