The /etc/qconfig file needs to be modified on a busy AIX print server with 30 printers attached. 
What action should be performed before modifying this file（）

单项选择题A System p admistrator must document the date of the latest update of the development systems. Which of the following commands will provide this information （）

A.lppchk -l
B.lslpp -h
C.installp -h
D.lppchk -v

单项选择题A System p administrator plans to install a new system with AIX 5.3 TL5 using a NIM server.  Which of the following provide post install diagnostics（）

A.SPOT
B.lpp_source
C.mksysb
D.install CD

单项选择题A System p administrator has just configured logging system messages with the syslogd daemon.  At boot time which file starts the syslog daemon（）

A./etc/rc.tcpip
B./sbin/rc.boot
C./etc/rc.net
D./etc/rc.d

单项选择题Because of changes in an application environment， the  etc inittab file needs to be modified.  Which of the following commands would be used to accomplish this in a supported manner（）

A.vi
B.chitab
C.chssys
D.chrsrc

单项选择题A System p administrator is reviewing root’s command history on a development server and finds that a junior adminstrator had been attempting to correct a full file system. One of the following commands caused damage that must be corrected.  Which command was it（）

A.rm /var/preserve/*
B.cat /dev/null > /var/adm/cron/log
C.> /var/adm/wtmp
D.rm /var/adm/ras/errlog