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?
- A. Channel 1, Channel 2, and Channel 3
- B. Channel 2, Channel 4, and Channel 9
- C. Channel 1, Channel 6, and Channel 11 Correct
- D. Channel 3, Channel 5, and Channel 10
Explanation
In the 2.4 GHz band, channels are 5 MHz apart but each one is about 20 MHz wide, so only channels 1, 6 and 11 do not overlap. Putting the three networks on those channels removes co-channel and adjacent-channel interference. The other sets contain channels close enough to overlap and would still interfere.
