You want to display all currently mounted file systems. Which command would you use? (Please enter only the command without arguments or options)

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Which of the following commands can be used to create a new file that is 100kB in size?

• A.touch
• B.file
• C.mkfile
• D.dd

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Which of the following commands is used to change options and positional parameters within a running Bash shell?

• A.history
• B.setsh
• C.bashconf
• D.set
• E.envsetup

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The system configuration file named _______ is commonly used to set the default runlevel. (Please provide the file name with full path information)

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After running the command umount /mnt, the following error message is displayed:
umount: /mnt: device is busy.
What is a common reason for this message?

• A.A user has a file open in the /mnt directory.
• B.The kernel thinks that a process is about toopen a file in /mnt for reading.
• C.The files in /mnt have been scanned and added to the locate database.
• D.The kernel has not finished flushing disk writes to themounted device.
• E.Another file system still contains a symlink to a file inside /mnt.

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