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CISSP · Question #597

Which of the following techniques is effective to detect taps in fiber optic cables?

The correct answer is A. Taking baseline signal level of the cable. Fiber optic cables are a type of transmission media that use light signals to transmit data. One of the techniques that can be used to detect taps in fiber optic cables is to take a baseline signal level of the cable and compare it with the current signal level. If there is a sig

Submitted by luis.pe· Mar 5, 2026Communication and Network Security

Question

Which of the following techniques is effective to detect taps in fiber optic cables?

Options

  • ATaking baseline signal level of the cable
  • BMeasuring signal through external oscillator solution devices
  • COutlining electromagnetic field strength
  • DPerforming network vulnerability scanning

How the community answered

(14 responses)
  • A
    93% (13)
  • C
    7% (1)

Explanation

Fiber optic cables are a type of transmission media that use light signals to transmit data. One of the techniques that can be used to detect taps in fiber optic cables is to take a baseline signal level of the cable and compare it with the current signal level. If there is a significant drop in the signal level, it may indicate that the cable has been tapped or compromised. Measuring signal through external oscillator solution devices, outlining electromagnetic field strength, or performing network vulnerability scanning are not effective techniques to detect taps in fiber optic cables.

Topics

#Fiber optic security#Cable tapping#Physical security#Network monitoring

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