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Zorluk: OrtaWireless Networking Standards and Technologies

A network technician is deploying three adjacent wireless access points along a continuous office corridor to support 2.4 GHz client devices. To eliminate radio frequency crosstalk and prevent adjacent-channel interference between neighboring coverage areas, which channel assignment scheme should the technician implement?

  1. Channels 1, 6, and 11Cevap
  2. B
    Channels 1, 2, and 3
  3. C
    Channels 2, 4, and 6
  4. D
    Channels 3, 7, and 11

Cevap

Channels 1, 6, and 11 provide the standard non-overlapping channel configuration for 2.4 GHz wireless networks operating in North America.
In 2.4 GHz Wi-Fi deployments, standard 20 MHz channels require a minimum center frequency separation of 25 MHz to prevent radio frequency interference. Channels 1, 6, and 11 provide complete isolation without frequency overlap, making them the standard choice for multi-access-point corridor deployments.

Adım Adım Çözüm

1
Identify the operating radio frequency band and channel width parameters.
The scenario specifies the 2.4 GHz Wi-Fi band using standard wireless access point deployments.
The 2.4 GHz band consists of 11 to 14 channels spaced 5 MHz apart, requiring specific channel selection to prevent spectral overlap.
2
Calculate the required channel separation for non-overlapping operation.
Standard 20 MHz signals require at least 20 MHz (typically 25 MHz center-to-center) spacing between active channel numbers.
Without sufficient separation, sideband emissions bleed into neighboring channels, causing adjacent-channel interference.
3
Select the three distinct non-overlapping channel numbers in the 2.4 GHz spectrum.
Channels 1, 6, and 11 are identified as the three mutually non-overlapping channels in North America.
Channel 1 operates at 2.412 GHz, channel 6 at 2.437 GHz, and channel 11 at 2.462 GHz, ensuring complete spectral isolation.

Anahtar Kavram

2.4 GHz Non-Overlapping Channels (1, 6, 11)
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Konular

Wireless Networking Standards and Technologies

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