Which server exam is best to take. Server 2003 or Server 2012? I understand 2012 covers and is compatible with some of the new technologies but surely for most companies i would imagine they would not upgrade there servers yet until after a few years of testing.

Hi I can't know your problem correctly. exchange 2007 sp3 can be installed in windows 2008 r2 and windows 2012. exchange 2010 sp2 can be installed in windows 2008 r2 and windows 2012. If you don't want to install windows 2012. Windows 2008 R2 is the best choice.Terence Yu TechNet Community Support