CWNP
CWSP-206 · Question #20
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…
The correct answer is C. A high-power, narrowband signal. See the full explanation below for the reasoning.
Question
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?
Options
- AA high-power ultra wideband (UWB) Bluetooth transmission.
- BA 2.4 GHz WLAN transmission using transmit beam forming.
- CA high-power, narrowband signal.
- DA deauthentication flood from a WIPS blocking an AP.
- EAn HT-OFDM access point.
- FA frequency hopping wireless device in discovery mode.
How the community answered
(40 responses)- B3% (1)
- C75% (30)
- D5% (2)
- E3% (1)
- F15% (6)
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