Chapter 6
| 1: | Why does a wireless MAN offer good return on investment? |
| A1: | Answer: Wireless MANs eliminate the need to install expensive cabling or lease communications circuits. |
| 2: | A learning bridge forwards all packets. True or false? |
| A2: | Answer: False. |
| 3: | What is the primary difference between a bridge and an access point? |
| A3: | Answer: A bridge connects networks together. An access point connects end users. |
| 4: | What are examples of semidirectional antennae? |
| A4: | Answer: Patch and Yagi. |
| 5: | In regards to beamwidth, what is the primary difference between a semidirectional and highly directional antenna? |
| A5: | Answer: A highly directional antenna has a much narrower beamwidth, which increases range if the power remains constant. |
| 6: | What is an example of a highly directional antenna? |
| A6: | Answer: Dish antenna. |
| 7: | What polarization would be most effective at a receiver if the transmitter were using vertical polarization? |
| A7: | Answer: Vertical polarization. |
| 8: | What are the advantages of using point-to-multipoint systems versus point-to-point for interconnecting multiple sites? |
| A8: | Answer: Point-to-multipoint can be less expensive and easier to add more sites. |
| 9: | What are the advantages of using packet radio for wireless MANs? |
| A9: | Answer: Packet radio routers don't require any cabling between them, and the system is relatively survivable because packets can take a different route if a router becomes inoperative. |
| 10: | Which standards do wireless MANs employ? |
| A10: | Answer: 802.11, Wi-Fi, and 802.16. |
