How can organizations effectively combine different types of physical access controls to enhance security?

Question

Options

• ABy allowing unrestricted access to all areas to promote a sense of trust among employees
• BBy implementing a single, universal access control mechanism for all areas
• CBy using multiple layers of access control, such as a combination of electronic access control and
• DBy eliminating the use of physical access controls and relying solely on employee vigilance

• A
  2% (1)
• B
  4% (2)
• C
  91% (43)
• D
  2% (1)

Explanation

The principle of defense in depth applies to physical security just as it does to cybersecurity. Layering multiple controls-such as key cards, biometric scanners, security guards, and physical barriers like mantraps or fences-ensures that a failure or bypass of one control does not grant immediate full access. Options A and D undermine security entirely. Option B relies on a single point of failure, which is never best practice. Option C correctly describes a multi-layered strategy that forces an attacker to defeat several independent controls.

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