Exam HPE6-A78 Topic 2 Question 20 Discussion

Actual exam question for HP's HPE6-A78 exam
Question #: 20
Topic #: 2

Refer to the exhibit.

You are deploying a new ArubaOS Mobility Controller (MC), which is enforcing authentication to Aruba ClearPass Policy Manager (CPPM). The authentication is not working correctly, and you find the error shown In the exhibit in the CPPM Event Viewer.
What should you check?

A. that the MC has been added as a domain machine on the Active Directory domain with which CPPM is synchronized B. that the snared secret configured for the CPPM authentication server matches the one defined for the device on CPPM C. that the IP address that the MC is using to reach CPPM matches the one defined for the device on CPPM D. that the MC has valid admin credentials configured on it for logging into the CPPM

Suggested Answer: C Vote an answer

Given the error message from the ClearPass Policy Manager (CPPM) Event Viewer, indicating a RADIUS authentication attempt from an unknown Network Access Device (NAD), you should check that the IP address the Mobility Controller (MC) is using to communicate with CPPM matches the IP address defined for the MC in the CPPM's device inventory. If there is a mismatch in IP addresses, CPPM will not recognize the MC as a known device and will not process the authentication request, leading to the error observed.
:
ClearPass Policy Manager documentation on device management.

by Eunice at Aug 10, 2026, 04:01 AM

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