HP HPE6-A78 Exam With Confidence Using Practice Dumps

Public Key Infrastructure (PKI) relies on a trusted root Certification Authority (CA) to issue certificates. Devices and users must trust the root CA for the PKI to be effective. If a root CA certificate is not pre-installed or manually chosen to be trusted on a device, any certificates issued by that CA will not be inherently trusted by the device.

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.References:

• ClearPass Policy Manager documentation on device management.

When deploying an Aruba Instant AP in a location where users can physically access it, enhancing security for management access could involve several measures: C. Disabling the Web UI will prevent unauthorized access via the browser-based management interface, which could be a security risk if the AP is within physical reach of untrusted parties. E. Installing a CA-signed certificate helps ensure that any communication with the AP's management interface is encrypted and authenticated, preventing man-in-the-middle attacks and eavesdropping.