What are the reasons why AP cannot go online? (Multiple choice)

Question

Options

• AThe configuration of the DHCP address pool is incorrect and the AP cannot obtain an address.
• BThe AP uses static discovery, but the IP configuration of the AC is wrong
• CThe AP version is inconsistent with the AC version
• DThe controller adopts the no-auth authentication mode

• A
  71% (32)
• D
  29% (13)

Explanation

Options A, B, and C each represent a failure point in the AP registration process: without a valid IP address (A), the AP cannot communicate on the network at all; with a wrong AC IP in static discovery mode (B), the AP has no way to locate and connect to its controller; and a version mismatch between the AP and AC (C) causes the registration handshake to fail because they cannot negotiate a compatible protocol. Option D is incorrect because no-auth mode means the AC accepts all APs without credential verification - this actually makes it easier for APs to come online, not harder. A useful memory tip: trace the AP's journey in order - get an address → find the controller → negotiate compatibility - and any failure along that path blocks the AP from going online, which maps directly to A, B, and C.

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