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（）

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

单项选择题The company auditors require a System p administrator to archive detailed information from each of their systems.  Which of the following commands will accomplish this task（）

A.snap -a
B.snap -i
C.prtconf
D.lsconf

单项选择题A System p administrator is investigating a possible security breech and wants to review  information about failed login attempts to the system.  Which of the following commands will show this（）

A.fwtmp < /etc/security/failedlogin
B.cat /etc/security/failedlogin
C.who
D.alog -f /etc/security/failedlogin -o

单项选择题Whichofthefollowingcommandswouldasystemadministratorusetoinitiatearescanofthe etc inittabfile（）

A.telinit -q
B.init -r
C.initab -s
D.exec /etc/inittab

单项选择题An AIX server will not boot in normal mode and the server must be booted into maintenance  mode to rebuild the boot logical volume. A NIM master is not defined in this environment.  How is the system booted into maintenance mode to perform this task （）

A.Apply power and when the SMS menus appear press 5 repeatedly to enter a maintenance boot automatically. The system will present a maintenance shell eventually.
B.Boot media such as CDROM or Tape is required to boot into maintenance mode. When inserted into the proper device the system automatically boots into maintenance mode when it can not boot into normal mode.
C.Apply power and the server automatically boots into maintenance mode where you can select your disk to rebuild the boot logical volume.
D.Boot media such as CDROM or Tape is required and an administrator must select the proper SMS menus to get into maintenance mode.