Power and data cables from the network center travel through the building's boiler room. Which of the following should be used to prevent data emanation?

Question

Options

• AVideo monitoring
• BEMI shielding
• CPlenum CAT6 UTP
• DFire suppression

• A
  3% (1)
• B
  94% (34)
• D
  3% (1)

Explanation

Data emanation refers to the unintentional emission of electromagnetic signals from cables or equipment that could be intercepted by an attacker (a technique related to TEMPEST attacks). A boiler room presents heightened EMI (Electromagnetic Interference) from motors and heating equipment, which can also cause signal leakage. EMI shielding - such as shielded twisted pair (STP) cables or metallic conduit - contains electromagnetic signals within the cable, preventing both external interference and data leakage. Video monitoring addresses physical security. Plenum CAT6 UTP is fire-rated but unshielded, so it does not prevent emanation. Fire suppression protects against fire damage, not signal interception.

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