Which is an example of a physical security control?

• A. Anti-climb fencing
• B. Password policy
• C. Security awareness training
• D. Access control listing

Answer: (A)

Physical security controls are tangible measures that directly restrict or slow unauthorized access to a facility or asset. Anti-climb fencing serves as a physical barrier at the perimeter, making it difficult or impossible for someone to scale the boundary. By delaying entry and signaling attempted breach, it reduces the chance of a successful intrusion and buys time for responders. The other options are not physical barriers; a password policy governs how credentials are used, not a device or structure; security awareness training changes behavior, not the environment; an access control listing is a record or policy about who may access, not a physical mechanism.