A network technician needs to install an additional access point to the company's wireless network. The network has two 802.11b access points. Which of the following channels should be used to allow…

The correct answer is A. 1, 6, 11. In the 2.4 GHz frequency band used by 802.11b (and 802.11g/n), there are 11 usable channels in North America, but they overlap significantly. Only channels 1, 6, and 11 are non-overlapping, meaning they do not share any frequency spectrum with each other. When access points in…

Network implementation

Question

A network technician needs to install an additional access point to the company's wireless network. The network has two 802.11b access points. Which of the following channels should be used to allow the access point's coverage areas to overlap?

Options

A1, 6, 11
B2, 5, 10
C3, 13, 23
D4, 8, 16

How the community answered

(37 responses)

A
86% (32)
B
8% (3)
C
3% (1)
D
3% (1)

Explanation

In the 2.4 GHz frequency band used by 802.11b (and 802.11g/n), there are 11 usable channels in North America, but they overlap significantly. Only channels 1, 6, and 11 are non-overlapping, meaning they do not share any frequency spectrum with each other. When access points in overlapping coverage areas use these three channels, they avoid co-channel interference, allowing each AP to operate independently. The other channel combinations listed (2/5/10, 3/13/23, 4/8/16) either overlap with each other or include channels outside the valid range, making them unsuitable for multi-AP deployments where coverage areas overlap.

Topics

#non-overlapping channels#802.11b#wireless channels#access point overlap

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