JN0-452 Exam Dumps | A network administrator is troubleshooting a connectivity issue where a client device can associate with

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Question 49

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Question 49/78

A network administrator is troubleshooting a connectivity issue where a client device can associate with an AP but fails the 802.1X authentication process. The administrator initiates a packet capture on the Mist dashboard.
The capture file shows EAP-Request/Identity frames from the AP and EAP-Response/Identity frames from the client, but it is followed by an EAP-Failure message from the AP.
What is the most likely cause of this failure?

A. The RADIUS server is actively rejecting the client's identity (username).

B. The client is using an incorrect pre-shared key.

C. The DHCP server is not responding.

D. The AP's Ethernet port has a duplex mismatch with the switch.

Correct Answer: A

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