CNX-001 · Question #60
A company is experiencing Wi-Fi performance issues. Three Wi-Fi networks are available, each running on the 2.4 GHz band and on the same channel. Connecting to each Wi-Fi network yields slow…
The correct answer is C. Channel 1, Channel 6, and Channel 11. In the 2.4 GHz Wi-Fi band, only three channels are non-overlapping: channels 1, 6, and 11. All other channel combinations overlap, causing co-channel or adjacent-channel interference. When multiple access points share the same channel or overlapping channels, they must take…
Question
A company is experiencing Wi-Fi performance issues. Three Wi-Fi networks are available, each running on the 2.4 GHz band and on the same channel. Connecting to each Wi-Fi network yields slow performance. Which of the following channels should the networks be configured to?
Options
- AChannel 1, Channel 2. and Channel 3
- BChannel 2. Channel 4, and Channel 9
- CChannel 1, Channel 6, and Channel 11
- DChannel 3, Channel 5, and Channel 10
How the community answered
(51 responses)- A6% (3)
- B4% (2)
- C88% (45)
- D2% (1)
Explanation
In the 2.4 GHz Wi-Fi band, only three channels are non-overlapping: channels 1, 6, and 11. All other channel combinations overlap, causing co-channel or adjacent-channel interference. When multiple access points share the same channel or overlapping channels, they must take turns transmitting (CSMA/CA), dramatically reducing throughput for all users. Assigning each network to one of the three non-overlapping channels (1, 6, 11) eliminates this interference. Options A, B, and D all include overlapping channels: channels 2, 3, 4, 5, 9, and 10 all overlap with adjacent channels and will still produce interference.
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