1. The three key public network components are what?

2. The ability of FDDI and other high-availability fiber networks to wrap connections on either side of a break is due to the dual ____ rings.

3. SNAP stands for ___?

4. Given a small local area network of 12 systems, what is the best device, where best is best performance without additional unneeded functionality, to connect all 12 systems to each other. Assume that all of the systems need to transfer large files frequently between each other, but that there is no need for external access/communication outside of the LAN.

a. hub b. switch c. router d. NIC

5. Given an analog signal with the highest frequencies at slightly below 4KHz, what would be the best sampling frequency, where best means the lowest sampling frequency that will still accurately allow the original signal to be regenerated.

a. 1 KHz b. 2 KHz c. 4 KHz d. 8 KHz e. 10 KHz

6. Which of the following is a cell-based protocol?

a. FDDI b. Ethernet c. ATM d. X.25 e. SONET

7. Short Answer: What mechanism is used by Ethernet for addressing when multiple stations attempt to transmit at the same time? What is the process that it uses, and what is this called?

8. Short Answer: Describe 5 network topologies (briefly) and give an advantage and a disadvantage for each. Rank the technologies in order of least resilient to most resilient to faults.

9. Short Answer: In what cases would you use an amplifier instead of a repeater? What is it about the behavior of each that makes one better than the other, and what specifically would be an issue for a WAN deployment cross country?

10. Short Answer: Describe the differences in 802.11 wireless protocols - what speeds and advantages are provided by each?