N10-009 · Question #191
A network administrator is performing a refresh of a wireless environment. As the APs are being placed, they overlap a little bit with each other. Which of the following 2.4GHz channels should be…
The correct answer is B. 1, 6, 11. To minimize interference between overlapping 2.4GHz access points, it is essential to use non-overlapping channels, and in the 2.4GHz band, channels 1, 6, and 11 are the three standard non-overlapping channels.
Question
A network administrator is performing a refresh of a wireless environment. As the APs are being placed, they overlap a little bit with each other. Which of the following 2.4GHz channels should be selected to ensure that they do not conflict?
Options
- A1, 3, 5
- B1, 6, 11
- C2, 6, 10
- D3, 6, 9
How the community answered
(37 responses)- B92% (34)
- C5% (2)
- D3% (1)
Why each option
To minimize interference between overlapping 2.4GHz access points, it is essential to use non-overlapping channels, and in the 2.4GHz band, channels 1, 6, and 11 are the three standard non-overlapping channels.
Channels 1, 3, and 5 overlap significantly, causing interference.
In the 2.4GHz Wi-Fi band, channels 1, 6, and 11 are the only three non-overlapping channels that are widely used. Selecting these channels for adjacent or overlapping access points ensures that they operate on distinct frequencies, minimizing co-channel interference and improving overall wireless network performance and reliability.
Channels 2, 6, and 10 also overlap, particularly channel 2 with 1, and 10 with 11.
Channels 3, 6, and 9 overlap significantly, leading to interference.
Concept tested: 2.4GHz Wi-Fi channel planning and interference mitigation
Source: https://www.cisco.com/c/en/us/products/collateral/wireless/aironet-solutions/white-paper-c11-731367.html
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