Which access control method is the most reliable and flexible for facility access?

• A. Card-reader systems
• B. 24/7 manned CCTV
• C. Key-lock systems
• D. Electrified locking systems

Answer: (A)

Controlling who can enter a facility is best achieved with a system that can issue, modify, and revoke access for many people across multiple doors from one place. Card-reader access control systems fit this need because credentials can be issued to staff and tied to specific doors and time windows. They provide centralized management, so you can quickly change permissions if someone changes roles or leaves the organization, and you can set different access rules for different people or groups. They also create an audit trail, showing who entered where and when, which supports tracking and incident response. When combined with alarms and other security measures, they offer a coordinated, scalable approach to entry control.

Surveillance-only systems like 24/7 CCTV don’t actually control access, they only observe. Mechanical key-locks are hard to manage in larger facilities—keys can be lost, copied, or stolen, and rekeying or replacing locks is expensive and disruptive. Electrified locking systems are useful for automated entry, but without a credential-based management system, they lack the flexibility to change permissions or track activity as efficiently.