A network engineer is designing a new wireless network for a campus. The network must include these requirements: - optimized performance - avoid interference - availability in high-density areas…

The correct answer is C. 5 GHz frequency band with 20 MHz channels D. 2.4 GHz frequency band with 20 MHz channels. Using narrower 20 MHz channels in both bands maximizes spatial reuse (critical in high-density areas), reduces co-channel interference, and supports stable client roaming. The 5 GHz band provides the most capacity and least congestion, while 2.4 GHz with 20 MHz channels…

Wireless Design

Question

A network engineer is designing a new wireless network for a campus. The network must include these requirements:

optimized performance
avoid interference
availability in high-density areas
roaming

Which two approaches must be taken? (Choose two.)

Options

A5 GHz frequency band with 80 MHz channels
B2.4 GHz frequency band with 40 MHz channels
C5 GHz frequency band with 20 MHz channels
D2.4 GHz frequency band with 20 MHz channels
E5 GHz frequency band with 40 MHz channels

How the community answered

(31 responses)

A
6% (2)
B
3% (1)
C
71% (22)
E
19% (6)

Explanation

Using narrower 20 MHz channels in both bands maximizes spatial reuse (critical in high-density areas), reduces co-channel interference, and supports stable client roaming. The 5 GHz band provides the most capacity and least congestion, while 2.4 GHz with 20 MHz channels maintains compatibility and coverage for legacy devices without introducing wide-channel overlap.

Topics

#channel width#5 GHz#2.4 GHz#high density design

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