A perimeter follower zone is an example of a(n) _____.

A perimeter follower zone is categorized as a non-entry/exit zone because its primary function is to monitor areas that are secure and typically not intended for entry or exit. These zones are designed to detect any unauthorized movement or activity along the perimeter of a secured area, such as the outer boundaries of a property or facility.

This approach allows for enhanced security by focusing on surveillance and detection to prevent potential intrusions before they can occur in more sensitive or critical areas. In contrast, entry/exit zones are specifically designated areas where access is controlled and monitored because individuals may frequently move in and out, making them distinctly different from the perimeter follower zone, which is more about overarching security without accommodating regular traffic.

The other options like dual-zone and emergency zone also refer to specific types of monitoring or security configurations that wouldn't apply directly to the functions of a perimeter follower zone. Dual-zones typically involve areas with both entry and exit controls, while emergency zones are set specifically for quick responses in crisis situations, making them irrelevant to the definition of a perimeter follower zone.