YournetworkcontainsanActiveDirectorydomain.AlldomaincontrollersrunWindowsServer2008.ThefunctionallevelofthedomainisWindowsServer2003.AllclientcomputersrunWindows7.YouinstallWindowsServer2008R2onaservernamedServer1.YouneedtoperformanofflinedomainjoinofServer1.Whichtwoactionsshouldyouperform()
A.FromServer1,rundjoin.exe.
B.FromServer1,runnetdom.exe.
C.FromaWindows7computer,rundjoin.exe.
D.UpgradeonedomaincontrollertoWindowsServer2008R2.
E.RaisethefunctionallevelofthedomaintoWindowsServer2008.