A technician needs to set up three wireless AP's in a single small office building. Which of the following channels should the technician select (one channel per AP) to ensure the APs do not…

The correct answer is A. 1 D. 6 H. 11. In the 2.4 GHz band (used by 802.11b/g/n), each channel is 22 MHz wide and channels are only 5 MHz apart, so adjacent channels overlap. The only three non-overlapping (non-interfering) channels in the 2.4 GHz band are channels 1, 6, and 11. These are spaced far enough apart…

Networking

Question

A technician needs to set up three wireless AP's in a single small office building. Which of the following channels should the technician select (one channel per AP) to ensure the APs do not interfere with each other? (Select THREE).

Options

How the community answered

(32 responses)

A
72% (23)
B
3% (1)
C
3% (1)
F
6% (2)
G
16% (5)

Explanation

In the 2.4 GHz band (used by 802.11b/g/n), each channel is 22 MHz wide and channels are only 5 MHz apart, so adjacent channels overlap. The only three non-overlapping (non-interfering) channels in the 2.4 GHz band are channels 1, 6, and 11. These are spaced far enough apart that their frequency ranges do not overlap, eliminating co-channel interference. All other channels listed (3, 5, 7, 8, 10) overlap with at least one of these three and would cause interference.

Topics

#wireless channels#non-overlapping channels#channel interference#AP configuration

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