What is an example of a physical security measure?

Question

Options

• AA code of conduct that requires staff to adhere to the clear desk policy, ensuring that confidential
• BAn access control policy with passes that have to be worn visibly
• CThe encryption of confidential information
• DSpecial fire extinguishers with inert gas, such as Argon

• A
  8% (2)
• B
  4% (1)
• D
  88% (22)

Explanation

Special fire extinguishers using inert gases like Argon are a physical security measure because they protect tangible assets (hardware, server rooms) from fire damage through a physical mechanism - displacing oxygen to suppress flames without harming equipment. Options A and B describe administrative/policy controls: a clear desk policy is an organizational rule, and access control passes are procedural measures (though passes themselves touch on physical access, the policy framing makes them administrative). Option C (encryption) is a technical/logical control that protects data in the digital domain, not the physical world.

Memory tip: Physical security = protecting the physical environment - think locks, cameras, fire suppression, alarms, and barriers. If you can touch it or it protects the room/hardware itself, it's physical. If it's a rule or software-based, it's administrative or technical.

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