单项选择题
A.usrck
B.chsec
C.chuser
D.passwd
单项选择题 WhichofthefollowingisthedefaultaccesscontrollistfilefortheResourceManagementandControl（RMC）subsystem？（）
单项选择题 Asystemadministratorissuedtheerrptcommandandhadnoresults.Thesystemadministratordeterminedthaterrorloggingwasturnedoff.Whichofthefollowingcommandsshouldbeusedtostartloggingsystemerrors？（）
单项选择题 Asystemadministratorhasatwo-diskvolumegroup（testvg）withonelogicalvolume（testlv）whichhasjustbeenmirroredacrossbothdiskdrives.Whichofthefollowingcommandscanbeusedtoturnoffquorum？（）