A. usr objreposB. usr lpp objreposC. usr bin objreposD.……

单项选择题A System p administrator needs to set the default password length for all users to six characters.  Which of the following files needs to be edited to accomplish this （）

A./etc/security/limits
B./etc/security/mkuser.sys
C./etc/security/priv
D./etc/security/user

单项选择题Due to operational commitments， a system has a very short backup window during the week， but is not used from Saturday morning through Sunday at Midnight.  Which of the following minimizes backup and recovery time， while providing complete data restore coverage （）

A.Full backups every month， daily incremental backups
B.Full backups every month， daily differential backups
C.Full backup Saturday night， incremental backups the rest of the week
D.Full backup Saturday night， differential backups the rest of the week

单项选择题A System p administrator would like to verify the user definitions in the  etc passwd file.  Which of the following commands will accomplish this（）

A.sysck
B.usrck
C.lssec
D.lsuser

单项选择题A System p administrator has an application that has the data in volume group appvg.  Which of the following commands will back up the contents of appvg to the tape in  dev rmt0 and check for any read errors （）

A.savevg -mf /dev/rmt0 appvg
B.savevg -cvf /dev/rmt0 appvg
C.savevg -vf /dev/rmt0 appvg
D.savevg -f /dev/rmt0 -V appvg

单项选择题Whichofthefollowingcommandswouldasystemadministratorusetoautomatemonitoringandnotificationoffillingfilesystems（）

A.startcondresp
B.filemon
C.lsfs
D.mount