YoumanageaserverthatrunsWindowsServer2008.Thewindowsbackupandrestoreutilityisinstalledontheserver.YounedetocreateafullbackupofallsystemstatedatatotheDVDdrive（Rdrive）ontheserver.Whichcommandshouldyourunontheserver（）？
A.WBadminenablebackup-addtargetR\/quiet
B.WbadminenablebackupCaddtargetC\/quiet
C.WbadminstartbackupCallCriticalCbackuptargetC\/quiet
D.WbadminstartbackupCallCriticalCbackuptargetR\/quiet
参考答案：D
