CWNP
CWSP-205 · Question #49
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 A. 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, narrowband signal
- BA 2.4 GHz WLAN transmission using transmit beam forming
- CAn HT-OFDM access point
- DA frequency hopping wireless device in discovery mode
- EA deauthentication flood from a WIPS blocking an AP
- FA high-power ultra wideband (UWB) Bluetooth transmission
How the community answered
(55 responses)- A82% (45)
- B2% (1)
- C5% (3)
- D2% (1)
- E9% (5)
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