Which command will display the current control key settings？（）

单项选择题Whichcommandwillchangetheuserwebserver’sshelltoksh93？（）

A.chshell -ksh93 webserver
B.chsh webserver /usr/bin/ksh93
C.chuser -a shell=/usr/bin/ksh93 webserver
D.setuid -a SHELL=/usr/bin/ksh93 -u webserver

单项选择题Whichenvironmentvariablemustbechangedinauser’sprofilesothatuponlogin，thecommandpromptidentifiestheserver？（）

A.PMT
B.PS1
C.PRT
D.PT1

单项选择题Whichcommandwillsetthecoresizefiletounlimitedfortheuser‘webapp’？（）

A.no -p ’core=-1’ webapp
B.chuser ’core=-1’ webapp
C.setsenv -attr ’core=unlimited’ webapp
D.chsec -f ’/etc/security/limits’ ’core=-1’ webapp

单项选择题Whichcommandshouldbeusedtoresetafailedlogincount？（）

A.chsec
B.chusr
C.passwd
D.chgusrprf

单项选择题Whichfilecontainstheattributesusedtosetupanewuseraccountwhenexecuting’mkuser’withoutanyflags？（）

A./etc/security/user
B./etc/security/passwd
C./etc/security/mkuser.sys
D./etc/security/mkuser.default