N10-009 · Question #274
A small coffee shop wants to set up multiple 2.4GHz wireless access points. The access points will support a large number of users, and the network technician wants to mitigate interference as much…
The correct answer is C. 3. In the 2.4GHz Wi-Fi band, there are three non-overlapping 22MHz channels (1, 6, and 11) that can be used to mitigate interference.
Question
A small coffee shop wants to set up multiple 2.4GHz wireless access points. The access points will support a large number of users, and the network technician wants to mitigate interference as much as possible. Which of the following is the number of 22MHz channels that the equipment can support?
Options
- A1
- B2
- C3
- D4
How the community answered
(36 responses)- A3% (1)
- B3% (1)
- C89% (32)
- D6% (2)
Why each option
In the 2.4GHz Wi-Fi band, there are three non-overlapping 22MHz channels (1, 6, and 11) that can be used to mitigate interference.
There are more than one non-overlapping channels available in the 2.4 GHz band for Wi-Fi.
There are more than two non-overlapping channels available in the 2.4 GHz band for Wi-Fi.
The 2.4 GHz ISM band for Wi-Fi offers 11 channels, each 22 MHz wide, but only channels 1, 6, and 11 are non-overlapping. Using these three channels helps prevent co-channel interference when deploying multiple access points.
There are only three truly non-overlapping 22MHz channels (1, 6, 11) available in the 2.4 GHz band, not four.
Concept tested: 2.4GHz Wi-Fi non-overlapping channels
Source: https://www.cisco.com/c/en/us/support/docs/wireless-networks/wireless-lan-wlan/11624-trouble-wireless.html
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