Hi Anita,
Please check below threads that already share lot of information on webi certification.
http://scn.sap.com/thread/3227358
/scn.sap.com/thread/3283553<br/>
http://scn.sap.com/thread/3283553
/scn.sap.com/thread/3283553<br/>
Thanks
Mallik
Message was edited by: Simone Caneparo fixed the hyperlinks