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Interview question · Network Security & Protocols

How do WPA2, WPA3 and enterprise Wi-Fi authentication work, and what attacks remain on wireless networks?

A shared password, a capture of one handshake and an offline dictionary is still how many Wi-Fi networks fall. The answer explains why, what SAE changed, and why enterprises use certificates instead.

mediumNewPreparation tags: Cisco, Apple, GoogleUpdated Nov 2026

A shared password, a capture of one handshake and an offline dictionary is still how many Wi-Fi networks fall. The answer explains why, what SAE changed, and why enterprises use certificates instead.

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What would you say before reading the answer?

  1. 01 State the assumptions your answer depends on.
  2. 02 Explain the mechanism and choose a control.
  3. 03 Name a condition that would change your decision.

The worked answer includes an approach, scoring criteria and follow-up questions. Compare the reasoning with your own.

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What if · the follow-ups in this answer

The answer works through 6 follow-ups like an interviewer would

A company sets up Wi-Fi for staff and guests in a new office and must choose security modes.

  1. What is weak about WPA2-Personal?
  2. What does WPA3-Personal improve?
  3. What should staff use?
  4. What about guests?
  5. What about rogue access points?
  6. What Wi-Fi design would you propose?

Each rung has a nudge, a model answer, the principle that carries over and the weak answer to avoid. Premium opens every answer and ladder.

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