Why is physical security considered a critical aspect of overall network security?

Question

Options

• AIt ensures that hardware is ergonomically designed
• BIt prevents unauthorized physical access to
• CIt guarantees the availability of technical support
• DIt enhances the aesthetics of the network

• A
  5% (2)
• B
  89% (33)
• C
  3% (1)
• D
  3% (1)

Explanation

Physical security is a critical layer of network security because preventing unauthorized physical access directly protects the hardware, cables, servers, and devices that the entire network depends on - if an attacker can physically touch your equipment, they can bypass nearly every software-based control (steal drives, install keyloggers, cut cables, or hard-reset devices).

Why the distractors are wrong:

• A (ergonomic design) - Ergonomics is an occupational health concern, not a security function.
• C (technical support availability) - Support availability relates to service agreements and staffing, not security controls.
• D (aesthetics) - How a network looks has no bearing on its security posture.

Memory tip: Think of physical security as the "locks and walls" layer - no firewall or encryption matters if someone can simply walk up and unplug (or pocket) your server. The mnemonic "Physical first, digital second" reminds you that all logical security assumes physical access has already been controlled.

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