Which example illustrates a procedural control?

• A. Visitor sign-in procedure at entry.
• B. Turnstile barrier at entry.
• C. CCTV camera surveillance.
• D. Security guard patrol.

Answer: (A)

Procedural controls are documented steps designed to enforce security policies. The visitor sign-in procedure at entry is the best example because it requires following a defined process before access is granted: verify identity, log the visit, sign in, issue a badge, and possibly be escorted. This creates an auditable record and ensures every visitor follows the same steps, limiting unauthorized access. The other options rely on physical barriers, monitoring technology, or a human activity rather than a documented sequence of actions that must be performed to allow access.