单项选择题
A.refresh -s inetd
B.refresh -s tcpip
C./etc/rc.tcpip efresh
D.refresh -g inetd
单项选择题 An administrator runs mktcpip aixhost 172.168.0.50 enO to change the network address， but the command hangs for an extended period of time. Which of the following is the most likely cause of the problem（）
单项选择题 AnadministratorreceivedacallfromauserwhosePCcrashedwhileusingvitoeditafile.Theuserwantstheeditedfileback.Whereshouldtheadministratorlookforthefile（）
单项选择题 UnderwhichofthefollowingcircumstancesmustaJFSfilesystembeusedinsteadofaJFS2filesystem（）