HPE6-A88 Exam Dumps

In OnGuard, you can configure Post-Auth Actions. When a device fails compliance, simply telling the user is often not enough. By choosing an action to 'Restart the session,' ClearPass sends a RADIUS CoA (Change of Authorization) to the switch or controller, which bounces the user's connection. This forces the device to re-authenticate, at which point the new 'Unhealthy' status will trigger a restricted or quarantine policy.

In any ClearPass cluster, there is exactly one Publisher. The Publisher is the only node that has full read/write access to the master configuration database. All changes made by administrators are written to the Publisher and then 'pushed' (replicated) to the Subscriber nodes, which have read-only copies of the configuration for processing authentications.

Accuracy in profiling is cumulative. Relying solely on one method (like DHCP) can result in 'Generic' profiles. By enabling multiple collectors---such as DHCP (for OS discovery), HTTP (for browser/version info), and SNMP (for system description/OID)---ClearPass can correlate data points to provide a 100% certain classification. The more 'context' ClearPass receives, the more reliable the final enforcement decision becomes.

ClearPass services are designed to be flexible with identity sources. In the Authentication tab of a service configuration, an administrator can add multiple sources (e.g., Active Directory, Guest Repository, and Local User Repository). ClearPass processes these sources in the exact order they appear in the list---attempting to authenticate the user against the first source, and moving to the next only if the user is not found in the previous one.

Certificate validation is a multi-step process. ClearPass must first verify the Trust Chain to ensure the certificate was issued by a trusted organization (CA). Next, it must check the Validity Period to ensure the certificate is not expired or not yet valid. Crucially, because certificates use precise timestamps, ClearPass must account for Clock Skew; if the server and client times are too far apart, the certificate may appear invalid even if it is technically current.