200-301 Question 68

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose A1

  Correct answer: A. different nonoverlapping channels To avoid co-channel congestion when installing access points using the 2.4 GHz band, the recommended approach is to use different nonoverlapping channels. Specifically, channels 1, 6, and 11 in most regions. These channels do not interfere with each other, reducing signal overlap and improving overall Wi-Fi performance. Using overlapping or the same channels causes interference, leading to degraded network quality. Answer C is wrong because using one nonoverlapping channel everywhere means all access points would be on the same channel, causing them to overlap with themselves and create co-channel interference.

• Chose C1

  C is corret one nonoverlapping channel

• 1

  Correct Answer is A. The only way to avoid any overlap between adjacent channels is to configure APs to use only channels 1, 6, and 11. Even though there are 14 channels available to use, you should always strive for nonoverlapping channels in your network.