Which one of the following tools will you use and why?

You must locate non-compliant 802.11 devices.

Which one of the following tools will you use and why?
A . A spectrum analyzer, because it can show the energy footprint of a device using WPA differently from a device using WPA2.
B . A spectrum analyzer, because it can decode the PHY preamble of a non-compliant device.
C . A protocol analyzer, because it can be used to view the spectrum energy of non-compliant 802.11 devices, which is always different from compliant devices.
D . A protocol analyzer, because it can be used to report on security settings and regulatory or rule compliance

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Answer: D