A server administrator is reviewing the physical security plan for a new data center located in an urban area with moderate vehicle traffic. The plan specifies the installation of K-rated bollards around the facility's perimeter, set back from the building's exterior walls. What is the primary threat this specific security control is designed to mitigate?
To prevent unauthorized pedestrian entry by eliminating tailgating.
To prevent vehicle-based attacks or ram-raiding.
To block radio signals from entering or leaving the secure facility.
To obstruct the view of monitors and keyboards to prevent shoulder surfing.
The correct answer is that K-rated bollards are designed to prevent vehicle-based attacks or ram-raiding. Bollards are sturdy, vertical posts used as a physical barrier. K-rated bollards, specifically, are certified to stop a 15,000 lb vehicle traveling at specific speeds (e.g., 30, 40, or 50 mph), making them an effective countermeasure against deliberate ram-raiding attacks or accidental high-impact collisions. This protects the data center building and its critical infrastructure from catastrophic damage.
The option regarding blocking radio signals describes the function of signal-blocking materials or a Faraday cage, not bollards.
The option about preventing unauthorized pedestrian entry through tailgating describes the function of a mantrap or turnstile system.
The option concerning the prevention of shoulder surfing is a control related to user awareness and privacy screens, not a physical barrier like a bollard.