Which are two reasons perimeter-based network security is no longer sufficient? (Choose two )

Question

Options

• Amore vulnerabilities
• Bmore IT professionals
• Cmore networks
• Dmore devices
• Emore users

• C
  5% (1)
• D
  95% (18)

Explanation

Perimeter-based security assumes a clear boundary between "trusted inside" and "untrusted outside," but more devices (D) and more users (E) have shattered that model. The explosion of smartphones, IoT devices, and BYOD policies means countless endpoints exist beyond any single perimeter to defend. Likewise, remote workers, contractors, and cloud service users operate entirely outside the traditional corporate boundary, making a single "wall" approach fundamentally inadequate - this is the core driver behind Zero Trust architecture.

Why the distractors are wrong:

• A (more vulnerabilities): Vulnerabilities have always existed; they motivate patching and scanning, not a rethinking of the perimeter model itself.
• B (more IT professionals): More security staff actually strengthens defenses - it's irrelevant to why perimeter security fails.
• C (more networks): While network sprawl is real, it's a symptom of D and E rather than a root cause driving perimeter inadequacy.

Memory tip: Think "D&E = Devices & Everyone" - the perimeter breaks when everything (devices) and everyone (users) moves outside the walls you built.

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