1. RFC 959 for the FTP protocol (Search via Google).
   2. Use RFC 959 to find and list all of the FTP service commands.
   4. What are the commands to make and remove a directory?

ANSWER:

1. 
   
   1. Can you propose a way to roughly determine the web servers (outside your department) that are most popular among the users in your department?
   3. Explain

1. Describe what is meant by a protocol that sends information:
   2. out-of-band
   4. in-band
   6. name a protocol that uses out-of-band
   8. name a protocol that uses in-band

1. Use the HTTP RFC (2616) (search via Google) for this question.
   2. What mechanism is used to signal that a persistent connection is being closed?
   4. Can the client, or server, or both use that signal?