While conducting a site survey, a security team wants to find hidden wireless transmissions. Which technique is the best for uncovering suspicious signals? Choose the best option.
Looking at building security records for unusual late -night access
Performing scans of local hosts and devices for open ports
Utilizing a portable spectrum analyzer to identify unusual radio activity
Marking suspected antenna locations on floor plans
A portable spectrum analyzer locates active radio sources that may not be visible through basic observation or record reviews. Marking antenna locations on a layout helps visualize coverage but does not confirm unexpected signals. Examining building logs does not capture signals actively transmitting if there is no recorded entry. Scanning local network segments can reveal services but does not address transmissions in the air.
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What is a portable spectrum analyzer, and how is it used in wireless security surveys?
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Why is marking suspected antenna locations on floor plans not enough for finding hidden signals?
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How does a spectrum analyzer differ from scanning local hosts and devices for open ports?