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Zorluk: ZorWireless Networking Standards and Technologies

A network engineer is deploying a wireless infrastructure across a warehouse using the 2.4 GHz spectrum. To ensure seamless coverage while eliminating co-channel interference between adjacent access points, which of the following configuration standards should the engineer implement? (Select TWO.)

  1. Restrict 2.4 GHz access point channel assignments strictly to non-overlapping channels 1, 6, and 11.Cevap
  2. Restrict the channel width configuration on all 2.4 GHz radios to 20 MHz.Cevap
  3. C
    Assign channels 1, 4, 7, and 10 sequentially across neighboring access points to balance frequency utilization.
  4. D
    Enable 40 MHz channel bonding across all 2.4 GHz access points to double spatial throughput.

Cevap

The network engineer should restrict channel assignments to non-overlapping channels 1, 6, and 11, and limit the 2.4 GHz channel width configuration to 20 MHz.
In 2.4 GHz wireless deployments, proper channel planning requires assigning non-overlapping channels (1, 6, and 11 in North America) to adjacent access points and maintaining a 20 MHz channel bandwidth. These settings prevent adjacent-channel interference and preserve spectral headroom across multiple access points.

Adım Adım Çözüm

1
Analyze the 2.4 GHz spectrum requirements for multi-access-point deployments.
The 2.4 GHz band spans channels 1 through 11 (in North America), with each channel separated by 5 MHz while requiring a 20 MHz channel bandwidth mask.
Understanding frequency spacing is necessary to identify non-overlapping channel combinations.
2
Identify valid non-overlapping channel schemes.
Channels 1, 6, and 11 provide the necessary 25 MHz separation between center frequencies, preventing adjacent-channel signal collision.
Using non-overlapping channels eliminates adjacent-channel interference across neighboring cell coverage areas.
3
Evaluate channel width impact on frequency availability.
Configuring 20 MHz channel widths ensures that 3 independent non-overlapping channels exist. Attempting to use 40 MHz channel bonding consumes 82% of the total 2.4 GHz spectrum, rendering multi-AP deployment without interference impossible.
Limiting channel width to 20 MHz is required to maintain channel isolation in high-density or multi-AP environments.

Anahtar Kavram

2.4 GHz Wi-Fi Channel Planning and Non-Overlapping Channels
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Konular

Wireless Networking Standards and Technologies

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