单项选择题

Review the following program.

What is the possible problem？（）

A.#!/bin/ksh line is missing
B.Variable name VAR is not properly initialized
C.Loop variable is not incremented inside the loop
D.Loop variable is not decremented inside the loop

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单项选择题

A system administrator has a server that is performing poorly. The vmstat command identifies that high CPU usage is the problem. Which of the following commands can be used to identify the eight most active processes running on the server？（）

A.ps -ef -t8
B.sar -u -p 8
C.vmstat -t 8
D.topas -p8 -n0 -d0

单项选择题

A system administrator is unable to unmount a file system. Which is the appropriate command to determine who or what is accessing the file system？（）

A.who /filesystem
B.lsfs /filesystem
C.fuser /filesystem
D.umount -f /filesystem

单项选择题

A system administrator wants to configure a system so that all new users will be put into the database group by default. How would this be accomplished？（）

A.remove all other groups from the system
B.run the command mkuser -default "GROUP=database"
C.change the default group in /usr/lib/security/mkuser.default
D.edit /etc/security/group to move all users to the database stanza

Review the following program. What is the possible problem？（）

相关考题

Review the following program.

What is the possible problem？（）