| 1.
 | 
 Describe the similarities and differences between these utilities:
 
- 
scp and ftp
  - 
ssh and telnet
  - 
rsh and ssh   
 | 
| 2.
 | 
 Assuming rwho is disabled on the systems on your LAN, describe two ways to find out who is logged in on some of the other machines attached to your network.
  | 
| 3.
 | 
 Explain the client/server model. Give three examples of services on Linux systems that take advantage of this model.
  | 
| 4.
 | 
 A software implementation of chess was developed by GNU and is available for free. How can you use the Internet to find a copy and download it?
  | 
| 5.
 | 
 What is the difference between the World Wide Web and the Internet?
  | 
| 6.
 | 
 If you have access to the World Wide Web, answer the following questions.
 
- 
Which browser do you use?
  - 
What is the URL of the author of this book's home page? How many links does it have?
  - 
Does your browser allow you to create bookmarks? If so, how do you create a bookmark? How can you delete one?   
 | 
| 7.
 | 
 Give one advantage and two disadvantages of using a wireless network.  |