Internet Addressess

What is a URL?
A URL is broken up into three parts. They are:

• The protocol("http")
• The server name("www.howstuffworks.com")
• The file name (web-server.htm")

What is an IP address and how is it related to a URL?
Each machine is given a unique address called a IP address. IP stands for "Internet Protocol".
An IP address would look something like this:
216.27.16.137

In the context of an IP address, what is an octect?
An octect is a value between 0 and 225.