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Difficulty: EasyWireless Networking Standards and Technologies

An IT support specialist is installing a secondary access point to expand coverage in an office suite. The primary access point is configured to broadcast on 2.4 GHz channel 1. Which channel should the specialist select for the secondary access point to ensure zero channel overlap?

  1. Channel 6Answer
  2. B
    Channel 2
  3. C
    Channel 3
  4. D
    Channel 4

Answer

Channel 6 should be selected because it is a standard non-overlapping 2.4 GHz channel relative to channel 1.
In 2.4 GHz Wi-Fi networks, channels 1, 6, and 11 are the primary non-overlapping channels. Selecting Channel 6 ensures complete frequency separation from Channel 1, eliminating adjacent-channel interference.

Step-by-Step Solution

1
Identify the frequency band used by the existing access point.
The network operates in the 2.4 GHz wireless frequency spectrum on channel 1.
Channel assignment rules differ between 2.4 GHz and 5 GHz bands.
2
Recall the standard non-overlapping channels for 2.4 GHz Wi-Fi deployments.
The standard non-overlapping channels in North America are 1, 6, and 11.
Each 2.4 GHz channel is 22 MHz wide, spaced 5 MHz apart, meaning channels closer than 5 increments overlap.
3
Select an available non-overlapping channel relative to channel 1.
Channel 6 (or channel 11) provides 25 MHz of separation from channel 1.
Using channel 6 prevents both co-channel and adjacent-channel interference.

Key Concept

2.4 GHz Wi-Fi non-overlapping channels (1, 6, and 11)
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Topics

Wireless Networking Standards and Technologies

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