Ch8 BB

Question 1

What does Wi-Fi refer to?

Answer 1

Originally employed as a marketing name for 802.11b, it is now a nickname that refers to the family of IEEE 802.11 standards.

Question 2

What does WLAN stand for?

Answer 2

Wireless Local Area Network(also Wireless LAN)

Question 3

What are the 5 variations of IEEE 802.11 that are common in use?

Answer 3

802.11a, b, g, n, and ac.

Question 4

What is the access method used by 802.11 networks?

Answer 4

Carrier Sense Multiple Access/Collision Avoidance(CSMA/CA)

Question 5

What is the bandwidth of the original 802.11 technology?

Answer 5

1 or 2Mbps using the 2.4GHz frequency spectrum with FHSS and DSSS for data encoding.

Question 6

What bandwidth is provided by 802.11a?

Answer 6

54Mbps in the 5GHz frequency spectrum. Uses orthogonal frequency division multiplexing(OFDM) for data encoding.

Question 7

T/F 802.11b is faster than 802.11a.

Answer 7

False. 802.11a is faster, but 802.11b is significantly cheaper.

Question 8

What bandwidth is provided by 802.11b?

Answer 8

11Mbps(fallback rates of 5.5, 2, 1Mbps)