单项选择题

Which of the following commands can be used to gain root privileges and profile without initially logging in as root?（）

A. su
B. su root
C. su - root
D. su -c "root"

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单项选择题

Which of the following is TRUE about error processing?（）

A.The error daemon runs in the foreground and reads the /etc/errpt file.
B.The error daemon is invoked by the user when required and it reads the /usr/lib/errpt.
C.The error daemon is invoked whenever the error occurs and it reads the /usr/lib/errpt.
D.The error daemon /usr/lib/errdemon runs in the background on most machines and reads the /dev/error special file.

单项选择题

All of the following classes of errors are logged in the error report EXCEPT（）.

A. Messages
B. Software
C. Hardware
D. Unknown

单项选择题

An AIX system administrator has setup disk quotas. Where can the reports be found on the system?（）

A./var/adm/acct/sum
B./var/adm/ras
C./usr/sbin/acct
D./var/adm/wtmp