QUESTION 1

1. What is the purpose of /dev/null ?

   a.

   This is an empty file used as the filesystem template for new files

   b.

   This is a special directory used for source code development files

   c.

   This file is a system device called a bit bucket which accepts input and does nothing with it.

   d.

   This is a device file that maps to the zero key on the keyboard

   QUESTION 3

   You have a directory named "CIS003" that has some files in it. You want to delete the directory and all the contents. What command would you type?

   	a.	rmdir CIS003
   	b.	del -R CIS003/*
   	c.	rm -r CIS003
   	d.	rmdir -all CIS003

   QUESTION 4

   In most Unix command line interfaces, which key can you press to get to a previously typed command (command history)?

   	a.	Shift + Enter
   	b.	Up Arrow
   c.		ESC Key
   d.		Space Key

   QUESTION 7

   If your current working directory is /usr, which of the following commands would bring you to the /usr/bin directory? (there might be more than one right answer)

   a.		cd ..
   b.		cd /usr/bin
   c.		cd bin
   d.		cd ./bin

   QUESTION 8

   Which command is used to search the contents of a file for lines that contain a particular pattern?

   a.		grep
   b.		ls
   c.		tee
   d.		wc

   QUESTION 10

   You want to create a symbolic link named "docs" in your home directory that points to /usr/share/doc

   What command would you type to create that symbolic link?

   a.		ln -s docs /usr/share/doc/
   b.		ln -s /usr/share/doc/ docs
   c.		ln /usr/share/doc/ -> docs
   d.		lnk -s /usr/share/doc/ .

   QUESTION 14

   Which of the following commands will bring you to your home directory (there might be more than one)?

   	a.	cd
   	b.	cd /
   	c.	cd $HOME
   	d.	cd ~

   QUESTION 17

   When using the vi text editor to edit a file, why can you just start typing away right after opening the file?

   a.		Vi takes a minute at startup to verify the file syntax.
   b.		Vi needs to be told if the file is ascii or binary after opening the file.
   c.		Vi starts in read-only mode by default.
   d.		Vi is a modal text editor, and is in command mode by default when first opened.

   QUESTION 20

   Which command would you type to view all connected filesystems in Unix?

   a.		lm -a
   b.		ls /
   c.		ps axm
   d.		mount