Which description best characterizes access control?

Which description best characterizes access control?

• A. System that restricts entry to authorized persons
• B. System that records all video footage
• C. System that monitors only environmental sensors
• D. System that manages fire alarms

Answer: (A)

Access control is about restricting entry to authorized persons. It verifies a person’s identity and permissions before allowing access to a space or resource, using credentials like badges, PINs, or biometrics and a door reader or controller. The system grants or denies access and often logs the attempt for accountability. This focus on who can enter and when they can do so is what makes it distinct from other functions like video recording (which captures activity), environmental monitoring (which watches conditions), or fire alarm management (which detects hazards and alerts occupants).

Access control is about restricting entry to authorized persons. It verifies a person’s identity and permissions before allowing access to a space or resource, using credentials like badges, PINs, or biometrics and a door reader or controller. The system grants or denies access and often logs the attempt for accountability. This focus on who can enter and when they can do so is what makes it distinct from other functions like video recording (which captures activity), environmental monitoring (which watches conditions), or fire alarm management (which detects hazards and alerts occupants).