1, How big is the MAC address space? The IPv4 address space? The IPv6 address space? 

Note: The size of an address space is the maximum number of different addresses it can  have.

2, In CSMA/CD, after the 5th collision, what is the probability that a node chooses K=4? The result K=4 corresponds to a delay of how many seconds on a 100 Mbps Ethernet?

3, What are the differences between the following types of wireless channel impairments: path loss, multipath propagation, interference from other sources?

4, Describe the role of the beacon frames in 802.11.

5, What is the difference between a permanent address and a care-of address? Who assigns a care-of address?

6, What is the difference between end-to-end delay and packet jitter? What are the causes of packet jitter?

7, What are the differences between message confidentiality and message integrity? Can you have one without the other? Justify your answer.

8, What is an important difference between a symmetric key system and a public key system?

9, Define the following terms: managing entity, managed device, management agent, MIB, network management protocol.

10, True or False, explain why?

a, Ethernet and 802.11 use the same frame structure.

b, The addresses in an Ethernet frame header are IP addresses.