A customer indicates that a system is experiencing printing problems. After checking the system, and successfully printing, no problem has been found.  Which of the following procedures should be performed next to further clarify the problem?（）

单项选择题Whenausertriestologintothesystem,thefollowingerroroccurs: 3004-004.Youmust exec loginfromthelowestloginShell .Whichofthefollowingproceduresshouldbeperformednexttodeterminethecauseoftheproblem?（）

A. Reboot the system. 
B. Increase the number of ptys. 
C. Increase number of licenses. 
D. Run df -k to check for full filesystems.

单项选择题Whatisthedefaultconfigurationfileusedbythesyslogddaemon?（）

A. /etc/syslog.h 
B. /etc/syslog.pid 
C. /usr/sbin/syslogd 
D. /etc/syslog.conf

单项选择题Asystemadministratorneedstoreplaceamirroreddisk.Afterperformingtheproperremovalprocessandreplacingthedisk,whichofthefollowingsetofcommandsshouldbeperformedtobringthediskbackintoproduction?（）

A. reboot, mklvcopy, syncvg 
B. cfgmgr -vl ssar, chvg -va, syncvg 
C. cfgmgr, extendvg, syncvg 
D. extendvg, mklvcopy, syncvg

单项选择题Asystemadministratorthinksthatafilesystemmaybefullandthatiswhatcausedthemachinetocrash.Whichcommandwillshowtheadministratoriftheyarecorrect?（）

A. du 
B. df 
C. fsck 
D. ncheck

单项选择题WhichofthefollowingproceduresbestexplainshowtoenabletheNISnameresolutiontotakeprecedenceoverDNSonasystem-widebasis?（）

A. Add the following line to /etc/netsvc.conf: hosts = nis,bind,local 
B. edit /etc/netsvc.conf to add the following: process /full/path/of/process \{ hosts = local,nis,dns} 
C. In an NIS and DNS environment, NIS takes precedence over DNS in this environment resulting in no change 
D. Change the NSORDER environment variable