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

单项选择题Which command will change the user webserver’s shell toksh93？（）

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Which command will set the core size file to unlimited for the user‘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Which environment variable must be changed in auser’s profile so that upon login，the command prompt identifies the server？（）

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

单项选择题Which command should be used to reset a failed login count?（）

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

单项选择题Which daemon identifies available filesystems throughthe etc xtab file?（）

A.nfsd
B.biod
C.rpc.lockd
D.rpc.mountd