Chapter 5
| 1: | Which wireless LAN component is most commonly used in home and small offices? |
| A1: | Answer: Wireless LAN router. |
| 2: | What is the primary difference between an access point and a wireless LAN router? |
| A2: | Answer: A wireless LAN router actually routes packets to their destination. Access points don't implement DHCP and NAT. Routers do implement DHCP and NAT. |
| 3: | When would the use of a wireless LAN repeater make sense? |
| A3: | Answer: When extending the range of an access point or router to an area where wires can't be run feasibly. |
| 4: | How does a wireless LAN radio NIC identify with which access point to associate? |
| A4: | Answer: The radio NIC listens for beacons being sent periodically by each access point and associates with the access point having the strongest beacon signal. |
| 5: | WEP is a mandatory encryption mechanism. True or false? |
| A5: | Answer: False. |
| 6: | In what frequency band does 802.11a operate in? |
| A6: | Answer: 5 GHz. |
| 7: | How many non-overlapping channels are available with 802.11b wireless LANs? |
| A7: | Answer: Three. |
| 8: | True of false: 802.11g operates at up to 54 Mbps and interoperates with 802.11b. |
| A8: | Answer: True. |
| 9: | Which 802.11 frequencies are available almost worldwide? |
| A9: | Answer: 2.4 GHz (802.11b and 802.11g). |
| 10: | What does Wi-Fi provide? |
| A10: | Answer: A product having Wi-Fi certification will interoperate with other products that have Wi-Fi certification, regardless of the manufacturer. |
