Examkin

Question

Difficulty: EasyWired and Wireless Network Issues

A network technician is configuring three adjacent wireless access points to provide seamless coverage across an office floor using the 2.4 GHz frequency band. Which set of channels should the technician assign to the access points to prevent signal overlap and minimize wireless interference?

  1. Channels 1, 6, and 11Answer
  2. B
    Channels 1, 2, and 3
  3. C
    Channels 2, 5, and 8
  4. D
    Channels 3, 7, and 11

Answer

Channels 1, 6, and 11 provide the necessary frequency separation to avoid co-channel and adjacent-channel interference in a 2.4 GHz wireless deployment.
In 2.4 GHz Wi-Fi deployments, channels 1, 6, and 11 are the standard three non-overlapping channels in North America and many standard regulatory domains. Each channel occupies 22 MHz of bandwidth, so separating channel centers by 25 MHz (5 channels apart) ensures zero co-channel or adjacent-channel interference.

Step-by-Step Solution

1
Identify the frequency band used by the access points
The deployment uses the 2.4 GHz frequency band.
The 2.4 GHz band has specific channel allocation characteristics distinct from 5 GHz or 6 GHz bands.
2
Determine channel width and separation requirements
Each 2.4 GHz channel occupies 22 MHz of spectrum, but channel centers are separated by only 5 MHz.
Channels must be separated by at least 5 channel numbers (25 MHz) to prevent frequency overlap.
3
Select the standard non-overlapping channel combination
Channels 1, 6, and 11 are identified as the three non-overlapping channels.
Assigning channels 1, 6, and 11 allows adjacent access points to operate without interfering with each other.

Key Concept

2.4 GHz Wireless Non-Overlapping Channels
Rate this question

Topics

Wired and Wireless Network Issues

More questions from this topic