200-301 Question 125
Select 3An IT administrator is setting up a 2.4 GHz Wi-Fi network in a crowded office environment. To minimize interference from overlapping channels, which channels should the administrator configure for the access points?
- A
Channel 1
- B
Channel 6
- C
Channel 11
- D
Channel 3
- E
Channel 9
Show answer and explanation
Correct answers: A, B, C
Explanation
In the 2.4 GHz Wi-Fi frequency band, Channels 1, 6, and 11 are the only nonoverlapping channels. Configuring access points to use these channels helps minimize interference, especially in environments with multiple Wi-Fi networks. Overlapping channels such as 3 and 9 can cause significant interference and degrade network performance.
- A. Correct.
Channel 1 is one of the three nonoverlapping channels in the 2.4 GHz frequency band, making it ideal for avoiding interference.
- B. Correct.
Channel 6 is another nonoverlapping channel in the 2.4 GHz frequency band, widely used to prevent channel overlap.
- C. Correct.
Channel 11 is the third nonoverlapping channel in the 2.4 GHz frequency band, suitable for minimizing interference.
- D. Incorrect.
Channel 3 overlaps with other channels, including Channels 1 and 6, and should be avoided in a high-density environment.
- E. Incorrect.
Channel 9 overlaps with other channels, including Channels 6 and 11, and is not a nonoverlapping channel, making it unsuitable for minimizing interference.