In a central database system, which component makes all intelligent decisions for the entire system?

In a central database system, which component makes all intelligent decisions for the entire system?

• A. Server or supervisory computer
• B. Control panel
• C. Biometric reader
• D. Door sensor

Answer: (A)

The central concept is that the central server or supervisory computer acts as the brain of the system. In a central database setup, the server runs the access control software and manages the database, collecting information from field devices, applying the security rules, and deciding what should happen next. It processes credentials, checks permissions, logs events, and sends commands to controllers to unlock doors, raise alarms, or record access—everything that requires system‑wide coordination. The other components are endpoints or sensors. A control panel is primarily an interface or local controller that interacts with users or devices, not the system-wide decision maker. A biometric reader and a door sensor simply provide input (identity data and door status) or trigger local actions; they don’t determine the overall behavior of the system on their own. So, the server or supervisory computer is the component that makes intelligent, system‑wide decisions based on the data and rules it maintains.

The central concept is that the central server or supervisory computer acts as the brain of the system. In a central database setup, the server runs the access control software and manages the database, collecting information from field devices, applying the security rules, and deciding what should happen next. It processes credentials, checks permissions, logs events, and sends commands to controllers to unlock doors, raise alarms, or record access—everything that requires system‑wide coordination.

The other components are endpoints or sensors. A control panel is primarily an interface or local controller that interacts with users or devices, not the system-wide decision maker. A biometric reader and a door sensor simply provide input (identity data and door status) or trigger local actions; they don’t determine the overall behavior of the system on their own.

So, the server or supervisory computer is the component that makes intelligent, system‑wide decisions based on the data and rules it maintains.