An administrator is having some trouble with a disk partition and needs to do maintenance on this
partition. The administrator’s users home directories are on it and several are logged in. Which of
the following commands would disconnect the users and allow the administrator to safely execute
maintenance tasks?

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Which command will display messages from the kernel that were output during the normal bootup
sequence? (Please enter only a single command and do not enter duplicate answers in this field.)

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What file contains kernel level logging information such as output from a network driver module
when it is loaded? (Please enter only a single command and do not enter duplicate answers in this field.)

Which of the following Debian package system commands will list all partially installed packages and
suggest how to get them correctly installed?

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What command is used to display a file in octal format? (Please enter only a single command and do
not enter duplicate answers in this field.)

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What option, when passed to the yum command, will update the entire system? (Specify ONLY the
option name with no additional parameters).

The message “Hard Disk Error” is displayed on the screen during Stage 1 of the GRUB boot process.
Which of the following does this indicate?

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What is the name of the main configuration file for GRUB? (Please specify the file name with no path
information).

An administrator wants the default permissions for their files to be -rw-r—–. How must the
administrator set umask?

An administrator is writing text in vi. Now the administrator wants to save their changes and exit.
Which of the following sequence of inputs will accomplish this? (Select TWO).