单项选择题
Following a system boot，the display indicates that previously detected hardware is missing. Which of the following commands would identify the missing hardware？（）
A.diag B.lscfg C.cfgmgr D.lsslot
An administrator has a two-disk volume group （testvg） w...
An administrator has a two-disk volume group （testvg） with one logical volume （testlv） which has just been mirrored across both disk drives. Which of the following commands can be used to turn off quorum？（）
A.chvg -Qn testvg B.chlv -Qn testvg C.varyoffvg testvg； varyonvg -Qn testvg D.varyoffvg testvg； exportvg testvg； importvg -Qn testvg； varyonvg testvg
An administrator has received complaints from users tha...
An administrator has received complaints from users that an application is not available while other applications run. This application resides on an NFS mounted filesystem. Which of the following commands should be run as a reasonable first step to handle this problem？（）
A.df B.showmount C.exportfs D.refresh -g nfs
WhichactionchangesthedefaulteditorforALLusersonthesyste...
单项选择题Which action changes the default editor for ALL users on the system from vi to edit？（）
A.Issue the command：export EDITOR=/usr/bin/edit edit each users .profile to change the EDITOR value to /usr/bin/edit B.Modify /.profile and change the EDITOR variable to /usr/bin/edit C.Modify /etc/environment and add EDITOR=/usr/bin/edit export EDITOR D.Modify /etc/security/defaults and change the EDITOR value to /usr/bin/edit
