200-301 Question 127
Select 1You are tasked with configuring a Wi-Fi network in the 2.4 GHz frequency band for a small office. To avoid interference caused by overlapping channels, which set of channels should you use to ensure optimal performance?
- A
Channels 1, 6, and 11
- B
Channels 2, 7, and 12
- C
Channels 3, 5, and 9
- D
Channels 1, 5, and 9
- E
Channels 4, 8, and 10
Show answer and explanation
Correct answer: A
Explanation
In the 2.4 GHz frequency band, the channels are spaced 5 MHz apart, but the channel width is 20 MHz. This overlap means only three channels (1, 6, and 11) can coexist without interfering with each other. Using these channels ensures optimal network performance and avoids interference.
- A. Correct.
Channels 1, 6, and 11 are nonoverlapping channels in the 2.4 GHz band, making them the optimal choice for minimizing interference.
- B. Incorrect.
Channels 2, 7, and 12 overlap with other channels, leading to potential interference and poor network performance.
- C. Incorrect.
Channels 3, 5, and 9 are overlapping channels and should not be used together in the 2.4 GHz band.
- D. Incorrect.
Channels 1, 5, and 9 include overlapping frequencies, causing interference in the network.
- E. Incorrect.
Channels 4, 8, and 10 are overlapping channels and are not suitable for minimizing interference.