What is the channel width of an 802.11b wireless channel?
A. 10 MHz
B. 20 MHz
C. 5 MHz
D. 22 MHz
What is the channel width of an 802.11b wireless channel?
What is the channel width of an 802.11b wireless channel?
A. 10 MHz
B. 20 MHz
C. 5 MHz
D. 22 MHz
You are correct in that the 802.11b channel width is 22 MHz, while G and A are 20 MHz. (G is in 2.4 GHz, and A in in 5 GHz). In the 2.4 GHz band, there 3 modes:
802.11B – 11 Mbps, 22 MHz wide
802.11G – 54 Mbps, 20 MHz wide
802.11N – 65-260/150-600 Mbps, 20/40 MHz wide
D is correct:
The 22 MHz channel bandwidth holds for all standards even though 802.11b WLAN standard can run at variety of speeds: 1, 2, 5.5, or 11 Mbps