Saintleo COM309 Module 6 Assignment Latest 2018 September

COM309 Network Theory & Design

Module 6 Assignment

For this module you
are required to complete the following assignments:

• Chapter 10: exercises # 1 – 5

1. Does the U.S.
government support the Internet? Explain.

2. Given an IP packet
of size 540 bytes and a maximum packet size of 200 bytes, what are the IP
Fragment Offsets and More flags for the appropriate packet fragments?

3. The Hop Limit field
in IP version 6 is 8 bits long (the same size as the equivalent Time to Live
field in IPv4). Since this hop count is decremented each time an IP datagram
enters a router, what are the implications of such a small field size?

4. Suppose there is a
small commercial retail building with essentially one room. On one side of the
room is a real estate agency and on the other side of the room is a guy who
sells tea. What is the relationship between this setup and the concept of IP
addresses with TCP port numbers?

5. Somewhere in the
middle of the United States are two Internet routers with routing tables that
are all messed up. The two routers keep sending their packets back and forth to
each other, nonstop. Will an error message ever be generated from this action?
If so, who will generate the error message and what might it look like?

Thinking Outside the
Box #2

Two banks want to
establish an electronic link between themselves, over which they can transmit
money transfer. Can they use a virtual private network and a tunneling
protocol, or is a better technique available? Defend your answer.

• Chapter 11: exercises # 1 – 6

1. The telephone line
that connects your house or business to the central office (the local loop)
carries your conversation and the conversation of the person to whom you are
talking. What do you estimate is the bandwidth of a local loop?

2. If you play a CD
for a friend over the telephone, will the friend hear high-quality music? If not, why not?

3. If you place a
telephone call and it leaves your LATA and enters another LATA, what kind of
telephone call have you placed? What kind of telephone company handles this
telephone call?

4. For each of the
following scenarios, state whether a telephone line or a trunk should be used:

a. The connection from your home
to the local telephone company

b. The connection
between a large company’s PBX and the telephone company

c. The connection between two
central offices

5. Many within the
telephone industry feel we will eventually run out of area codes and telephone
numbers. How many different area codes are currently available? What would you
suggest to increase the number of telephone numbers?

6. State whether each
of the following was a result of the Modified Final Judgment of 1984, the
Telecommunications Act of 1996, or neither:

a. The FCC was created
to watch over interstate telephone systems

b. AT&T had to
sell off its local telephone companies

c. The LATA was
created

d. Cable television
companies could provide local telephone service

e. Customers could
choose between different long-distance telephone providers

f. AT&T split off
its technology division, which became Lucent

Thinking Outside the
Box #2

You are consulting for
a hospital that wants to send three-dimensional, high-resolution, color
ultrasound images between the main hospital and an outpatient clinic. A patient
will be receiving the ultrasound at the clinic, while a doctor at the main
hospital observes the images in real time and talks to the ultrasound
technician and patient via a telephone connection. What type of
telecommunication service presented in this chapter might support this
application? Indentify the telecommunications service, and be sure to list the
particular details concerning the service. Explain your reasoning.