Since the exam is updated for SQL Server 2008 R2, I would like to know what are the additional topics to be covered for preparation as the book available is designed for SQL Server 2008.
None. 2008 and 2008 R2 are just about identical when it comes to the DB engine.
Gail Shaw Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci) SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter We stand on the bridge and no one may pass