While seeking the source of interference on channel 11 in your 802.11n WLAN running within 2.4 GHz, you notice a signal in the spectrum analyzer real time FFT display. The signal is characterized with the greatest strength utilizing only 1-2 megahertz of bandwidth and it does not use significantly more bandwidth until it has weakened by roughly 20 dB. At approximately -70 dB, it spreads across as much as 35 megahertz of bandwidth. What kind of signal is described?

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A. A high-power, narrowband signal

Answer

B. A 2.4 GHz WLAN transmission using transmit beam forming

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C. An HT-OFDM access point

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D. A frequency hopping wireless device in discovery mode

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E. A deauthentication flood from a WIPS blocking an AP

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F. A high-power ultra wideband (UWB) Bluetooth transmission

While seeking the source of interference on channel 11 in your 802.11n WLAN running within 2.4 GHz, you notice a signal in the spectrum analyzer real time FFT display. The signal is characterized…

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