Which of the following technologies can change channel widths?

The correct answer is C. 802.11n. 802.11n was the first Wi-Fi standard to support dynamic channel bonding, allowing the channel width to be set to either 20MHz (standard) or 40MHz (bonded). This flexibility lets administrators trade reduced interference (20MHz) for higher throughput (40MHz). 802.11a (A) and…

Networking concepts

Question

Options

A802.11a
B802.11b
C802.11n
DBluetooth

How the community answered

(34 responses)

B
3% (1)
C
94% (32)
D
3% (1)

Explanation

802.11n was the first Wi-Fi standard to support dynamic channel bonding, allowing the channel width to be set to either 20MHz (standard) or 40MHz (bonded). This flexibility lets administrators trade reduced interference (20MHz) for higher throughput (40MHz). 802.11a (A) and 802.11b (B) are fixed at 20MHz channel widths with no bonding capability. Bluetooth (D) uses frequency-hopping spread spectrum across a fixed 1MHz channel width and does not support variable channel widths.

Topics

#802.11n#channel bonding#channel width#wireless standards

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