Q: Which wireless LAN component is most commonly used in home and small offices?

Answer: Wireless LAN router.

Q: What is the primary difference between an access point and a wireless LAN router?

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.

Q: When would the use of a wireless LAN repeater make sense?

Answer: When extending the range of an access point or router to an area where wires can't be run feasibly.

Q: How does a wireless LAN radio NIC identify with which access point to associate?

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.

Q: WEP is a mandatory encryption mechanism. True or false?

Answer: False.

Q: In what frequency band does 802.11a operate in?

Answer: 5 GHz.

Q: How many non-overlapping channels are available with 802.11b wireless LANs?

Answer: Three.

Q: True of false: 802.11g operates at up to 54 Mbps and interoperates with 802.11b.

Answer: True.

Q: Which 802.11 frequencies are available almost worldwide?

Answer: 2.4 GHz (802.11b and 802.11g).

Q: What does Wi-Fi provide?

Answer: A product having Wi-Fi certification will interoperate with other products that have Wi-Fi certification, regardless of the manufacturer.


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