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CWNA-106 · Question #129

If an 802.11 RF signal reaches a receiving antenna simultaneously by direct and indirect (reflected) paths, what effect might the reflected signal have on the signal that took the direct line…

The correct answer is D. The direct signal will be attenuated if the indirect signal arrives simultaneously at the receiver, but 90 out-of-. See the full explanation below for the reasoning.

Question

If an 802.11 RF signal reaches a receiving antenna simultaneously by direct and indirect (reflected) paths, what effect might the reflected signal have on the signal that took the direct line- of-sight path?

Options

  • AThe direct signal will be amplified. The amplification results in a signal that is stronger at the receiving
  • BThe direct signal will not be received if the indirect signal is greater than 90 out-of-phase.
  • CAdjacent channel interference will occur. The interference creates distortion of the signal, rendering it corrupt
  • DThe direct signal will be attenuated if the indirect signal arrives simultaneously at the receiver, but 90 out-of-
  • ECo-channel interference occurs. The interference causes attenuation and phase inversion of the direct signal.

How the community answered

(14 responses)
  • A
    7% (1)
  • D
    86% (12)
  • E
    7% (1)

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