A(n) ? system provides security for persons and property by restricting access to a building or specific area through barriers such as locked doors or fences.

A(n) ? system provides security for persons and property by restricting access to a building or specific area through barriers such as locked doors or fences.

• A. Access control
• B. Surveillance system
• C. Alarm system
• D. Security monitoring

Answer: (A)

Access control focuses on restricting entry to a building or area by enforcing barriers and authentication methods. It relies on physical barriers like locked doors and fences, plus credential-based or biometric systems (such as keycards, PIN pads, or fingerprint readers) to ensure that only authorized people can gain access. This combination directly provides security for persons and property by controlling who is allowed inside. By contrast, surveillance systems are for observing and recording activity, alarms alert when a breach occurs but don’t by themselves prevent entry, and security monitoring oversees the response to incidents rather than enforcing access at the entry point.

Access control focuses on restricting entry to a building or area by enforcing barriers and authentication methods. It relies on physical barriers like locked doors and fences, plus credential-based or biometric systems (such as keycards, PIN pads, or fingerprint readers) to ensure that only authorized people can gain access. This combination directly provides security for persons and property by controlling who is allowed inside. By contrast, surveillance systems are for observing and recording activity, alarms alert when a breach occurs but don’t by themselves prevent entry, and security monitoring oversees the response to incidents rather than enforcing access at the entry point.