Question

Difficulty: MediumPhysical Security Controls and Environmental Measures

A network facility manager is reviewing physical security and environmental protection measures for a remote server room. Match each physical security control or environmental measure on the left with its primary operational purpose on the right.

  • Faraday CageBlocks external electromagnetic interference and prevents wireless signal leakage
  • MantrapPrevents tailgating by utilizing physical access interlocks between two sequential doors
  • Clean-Agent Fire Suppression SystemExtinguishes fires without leaving chemical residue or damaging delicate electronic components
  • HVAC Humidity ControllerMaintains relative moisture levels to mitigate electrostatic discharge risks and condensation

Answer

Faraday Cage matches with blocking electromagnetic interference; Mantrap matches with preventing tailgating via interlocking doors; Clean-Agent Fire Suppression matches with extinguishing fires without residue; HVAC Humidity Controller matches with managing moisture to prevent ESD and condensation.
Each physical security control or environmental measure is paired with its specific protection mechanism: Faraday cages provide RF/EMI isolation, mantraps mitigate physical tailgating via dual-door interlocks, clean-agent suppression safely puts out fires without water damage, and HVAC humidity regulation prevents electrostatic discharge and moisture condensation.

Step-by-Step Solution

1
Identify the primary protective function of shielded enclosures.
Recognize that a Faraday cage blocks electromagnetic signals and prevents wireless interception or interference.
Electromagnetic shielding isolates network hardware from external radio frequencies and signal leakage.
2
Analyze physical entry barrier controls.
Identify that a mantrap utilizes a dual-door interlocking system to control individual access.
Interlocking doors force sequential authentication to eliminate piggybacking or tailgating.
3
Evaluate specialized data center fire protection solutions.
Determine that clean-agent fire suppression uses non-conductive gas rather than water or dry chemicals.
Gaseous suppressants extinguish fire safely around active electrical components without shorting equipment or leaving corrosive residue.
4
Examine environmental controls for humidity management.
Connect HVAC humidity regulation to static electricity and moisture control.
Maintaining proper humidity levels avoids low-humidity ESD risks and high-humidity condensation risks.

Key Concept

Physical Security Controls and Environmental Measures
Estimated Time:1m 30s
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