Homework 13

Details

Do the following exercises from pages 194-195 of your textbook (182-183 in full book) and the ones listed below.

Problem	Points
27	5
34	4
1 below	4
2 below	4
3 below	3

1. The subnet mask on FerzleCorp's network is 255.255.224.0. Given this, how many IP addresses are available on the their domain? Explain how you arrived at your answer. (Hint: What is the 32-bit string representation of the subnet mask, and what does that have to do with anything?)
2. Suppose you try to access the KnowHope home page using the URL http://www.hope.edu/knowhope, and get a message from your web browser that the server cannot be contacted. You happen to know that the IP address for www.hope.edu is 208.67.222.222, so you try http://208.67.222.222/knowhope, and to your surprise, it works. Clearly there is a problem somewhere on the network. Where is the problem? Explain your answer.
3. The base network address for computers at Despair University is 198.110.96.0, and the subnet mask is 255.255.240.0. Given this, which of the following IPs can be at Despair U.? Justify your answers.
   1. 198.110.98.147
   2. 198.110.112.45
   3. 198.121.98.6