What is illustrated on the RF spectrum analyzer?
A.
There is an HR/DSSS client performing an authentication flood attack against an ERP AP on channel 11.
B.
A narrowband RF attack is in progress on channel 11.
C.
An HR/DSSS AP and an ERP AP are both operating on channel 11 simultaneously.
D.
An ERP access point on channel 11 operating normally.
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What is illustrated on the RF spectrum analyzer?(Exhibit)
A.
A high-power, narrowband signal located near channel 11
B.
A 2.4 GHz phased array WLAN antenna transmission
C.
An OFDM access point operating on channel 11
D.
A frequency hopping station currently transmitting on channel 12
E.
A deauthentication frame from a WIPS blocking an AP on channel 13
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Exhibit
What is illustrated on the RF spectrum analyzer?
A.
A low-power narrow band RF attacks is in progress on channel 11, causing significant 802.11 interference.
B.
A frequency hoping device is being used as a signal jammer on channel 11 only.
C.
An HR/DSSS AP and an ERP AP are both operating on channel 11 simultaneously.
D.
An ERP AP operating normally on channel 11.
Explanation:
A narrow – band RF signal occupies a smaller and fi nite frequency space and will not cause a DoS for an entire band such as the 2.4 GHz ISM band. A narrow – band signal is usually very high amplitude and will absolutely disrupt communications in the frequency space in which it is being transmitted. Narrow – band signals can disrupt one or several 802.11 channels.Figure shows a spectrum analyzer capture of a narrow – band signal close to channel 11 in the 2.4 GHz ISM band
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