Which factor is NOT typically considered when selecting an IDS?

• A. Geography of the site
• B. Design considerations
• C. Color of the building exterior
• D. Animals and insects common in the vicinity

Answer: (C)

When selecting an intrusion detection system, the focus is on how reliably and comprehensively it detects unauthorized entry and how well it fits with other security controls and the site environment. The color of the building exterior doesn’t influence sensor performance, range, environmental resilience, or system integration, so it’s not typically considered.

Geography of the site matters because it shapes where sensors, cameras, and detectors should be placed to maximize coverage and minimize blind spots. Design considerations cover the types of sensors used, how they connect to the network, power and backup needs, scalability, and maintenance requirements. Animals and insects common in the vicinity can trigger false alarms or nuisance alerts, so you choose sensor types and mounting strategies, adjust sensitivity, and use protective housings or filtration to reduce these issues.