Homework 1

Answer the following questions about Kurose and Ross, Chapter 1. You only need to turn in those that have a point count assigned.

1. (1 point) What is the difference between packet-switched networks and circuit-switched networks? Which is used in the internet?
2. What are two kinds of multiplexing used in circuit-switched networks?
3. (1 point) What is the equation that breaks down the node-to-node delay into different components? Give a brief description of each of the components.
4. (1 point) The following questions refer to the four components of the node-to-node delay.
   1. How do you compute the transmission delay?
   2. How do you compute the propagation delay?
   3. Which component is most significant for a heavily loaded local area network?
   4. Which component is most significant for almost all wide area networks?
5. (1 point) What are specific functions for the following layers?
   1. The Application layer.
   2. The Transport layer.
   3. The Network layer.
   4. The Link layer.
   5. The Physical layer.
6. (1 point) Answer the following questions in the context of the internet.
   1. What two protocols are used in the Transport layer? How do they differ?
   2. What is the primary protocol used in the Network layer?