Use  http://computer.howstuffworks.com/dns.htm and answer the following

a.  Describe the relationship between domain and IP address. (2 marks)

b.  Annotate addresses such as http://www.ibo.org to show the meaning of each part to describe the structure of domain names with respect to organization and country of location. Identify 5 different countries and organization types. (3 marks)

c.  Why do domains need to be registered? (2 marks)

d.  Describe what happens when you type in a URL into a browser. How does it find the IP number? Distinguish between name and root servers. (4 marks)

e.  Why are redundancy and caching important for servers? (4 marks)

Total - 15 marks