While editing a file in vi, an administrator realizes that the wrong file is being changed. Which of
the following vi command sequences will allow the administrator to quit without saving any
changes?

To allow a regular user account to mount and unmount a filesystem (for instance, a cdrom or
floppy), which of the following options will need to be added to the corresponding line in /etc/fstab?

Which of the following commands will print a list of usernames (first column) and their
corresponding user id (uid, third column) from /etc/passwd?

The priority of any process can range from -20 to ________. (Provide only the numerical value).

An administrator has written a custom tool on their local system. Following the Filesystem
Hierarchy Standard (FHS), where should the administrator install the binaries to be available to all
users on the administrator’s system?

Which of the following would be accomplished if the below line is run as root? chown -R bert
/home/bert/*

An administrator wants to display all currently mounted file systems. Which command would be
used? (Please enter only a single command without arguments or options).

Upon booting a Linux box, an administrator notices a message scrolling by that does not look
right, but it goes by so fast, the administrator does not have a chance to read it. What command
could the administrator use to view that message after the boot process completes? (Please enter
only a single command and do not enter duplicate answers in this field.)

In GRUB’s configuration file an administrator finds the following line: root (hd1,4) Which of the
following is the corresponding device name on a Linux system?

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