Which zone is responsible for preventing unauthorized access to restricted areas?

• A. Exclusion
• B. Containment
• C. Protection
• D. Access Control

Answer: (A)

Exclusion is the zone that prevents unauthorized access by defining a boundary that only authorized personnel may cross. It uses barriers, signs, and entry controls to physically keep out those without clearance, making the restricted area off-limits. Containment focuses on keeping hazards contained within a certain area, not on who can enter. Protection is a broad safeguard concept for assets, not the specific boundary that blocks entry. Access control refers to the methods and technologies used to grant or deny entry, rather than the zone itself.