Which statement about the join process of the access point is true?
Refer to the exhibit.
A. The time on the controller is outside of the certificates validity time interval, so the join phase failed.
B. The AP moved from this controller to its primary controller.
C. The controller rejected most of the discovery requests from the AP because they were not received on the management interface subnet. The AP failed to join the controller.
D. The AP successfully joined the controller.
E. The AP failed to join because the self-signed certificate of the AP on the controller was not correct.
Answer is C.
Answer D is not correct because APs have MIC (Manufacturer Installed Certificate), not SSC.
In addition, the last error shows an issue in the discovery process which is before the join process (last join error is from an earlier join process failure)
E. The AP failed to join because the self-signed certificate of the AP on the controller was not correct.
Reason for the last unsuccessful join attempt due to certificate was invalid.
Sorry C.
Check on bottom right to know last join problem. “Discovery request received on unsupported VLAN”