When dual-link hot standby switchover, which statement about the behavior of AP and users is correct? (Multiple choice)

Question

Options

• AAP does not need to go online again
• BAP needs to go online again
• CUsers do not need to re-login
• DThe user needs to go back online

• A
  73% (16)
• B
  18% (4)
• D
  9% (2)

Explanation

In dual-link hot standby, the backup Access Controller (AC) continuously synchronizes all AP associations and user session states in real time with the active AC. When a switchover occurs, the backup AC already holds complete context for every AP and every connected user, so the transition is seamless - APs remain associated (A is correct) and user sessions persist without re-authentication (C is correct).

B is wrong because requiring APs to re-associate would cause a service outage, which defeats the entire purpose of hot standby - the synchronized backup AC already recognizes each AP as fully online. D is wrong for the same reason applied to users: since session data (IP bindings, authentication tokens, etc.) is mirrored continuously, users experience no drop that would force them to reconnect.

Memory tip: Think of dual-link hot standby as a "shadow twin" - the standby AC is a live mirror, not a cold spare. If it's truly synchronized before the failure, nothing needs to be redone after the switchover. Any answer suggesting a "re-do" step (B or D) contradicts the definition of hot standby.

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