Links and Packets, communications homework help

Please read the instructions for assignments carefully and take time to review your work. Perhaps most importantly, show all of your work and/or fully explain your answers.

Remember, all work should be original and in your own words and/or sources properly cited.

Complete the following short answer questions:

1. Refer to Figure 1-26 (attached), when Host A transmits a packet to Router1 R1 using the shortest path:

a) How many physical links are there along the data link shown?
b) How many data links?

2. Refer to Figure 1-26 (attached):

a) How many physical links, data links, and routes are there along the way when Host A sends a packet to Host D using the shortest path?
b) How many physical links, data links, and routes are there along the way when Host A sends a packet to Router2 R2 using the shortest path? (Assume that hops will be minimized across switches and routers.)
c) How many physical links, data links, and routes are there along the way when Host D sends a packet to Host B using the shortest path?

3. Refer to Figure 1-26 (attached):

a) What type of single network is Network Y?
b) What type of single Network is Network X?
c) What type of protocol does Network Y follow at the data link layer?

4. In a network, there are 10 routers between Host Q and Host Y.

a) How many data links will there be along the way when Host Q transmits a packet to Host Y? (Hint: Draw a picture.)
b) How many routes?
c) How many frames?

5. How is network data delivered on the Internet versus the World Wide Web? (This question requires research beyond the text.)

There is no need to take time retyping the questions, your responses are the most important part; however, please do mark/number which questions you are answering.