Pass the HP HPE Aruba Certified HPE6-A88 Questions and answers with CertsForce

To manage certificates in ClearPass Onboard, the administrator must drill down into the specific Certificate Authority (CA) that issued the credentials. From there, they can view a list of all issued certificates , search for the one belonging to the lost device (using the username or MAC address), and perform the Revoke action. This immediately invalidates the certificate for future 802.1X authentications.

ClearPass Guest registration pages use dynamic AJAX/JavaScript polling to monitor the status of the account. When a sponsor clicks "Approve," the account state changes from 'disabled' to 'enabled' in the database. The receipt page detects this change in real-time, and the Log In button , which was previously grayed out or inactive, automatically becomes active , allowing the guest to connect without needing to refresh the page.

In the AAA model, Authentication is the act of proving identity and verifying that the account is valid and active. Just as the club system checks the database to confirm the cardholder is a legitimate member before opening the door, ClearPass checks an identity store (like AD or the Guest DB) to confirm a user's credentials are correct and their account hasn't expired before allowing them onto the network.

Comprehensive and Detailed Explanation From HPE Aruba Networking ClearPass portfolio:

Automatic endpoint reconciliation is a feature designed to handle rapid changes in device status. It ensures that when new information (like a profile change or a posture update) is received, ClearPass immediately reconciles that data with the current session. This prevents "flapping" or repetitive disconnections where the system fails to correctly apply the updated context to the device's network access.

The Enforcement Policy is the logic engine of ClearPass. While the "Service" selects which policy to run, and the "Profile" contains the actual attributes (like VLANs) to send, the Enforcement Policy Rules are responsible for the evaluation. These rules use "If/Then" logic to compare the gathered context—such as user role, device type, and OnGuard posture status—against predefined security criteria to determine the final access level.

Service Wizards in ClearPass provide a powerful "boilerplate" configuration for common scenarios. However, specialized devices like handheld scanners often have unique requirements for session timeouts, encryption types, or vendor-specific attributes (VSAs). While the wizard sets up the basic structure, administrators should expect to manually fine-tune the role mapping and enforcement profiles to meet the specific operational needs of that hardware.

Redirection to a captive portal is triggered by the Network Access Device (NAD) based on the RADIUS response from ClearPass. If ClearPass returns a role or attribute (like a redirect-URL or a specific "logon" role) that the gateway does not recognize or support, the gateway will not intercept the user's web traffic. The 'captive portal access' value (often a VSA or a filter-ID) must exactly match a pre-configured role on the Aruba gateway that has the "Captive Portal" profile attached.

While caching can sometimes cause issues (as seen in Q76), enabling 'Use Cached Results' is often necessary for efficiency in complex multi-stage authentications. If this is not enabled , ClearPass may fail to properly correlate new status changes (like a profile update) with the existing session, leading the system to revert to a default or previous decision rather than dynamically adjusting the access based on the latest context.

To send SMS notifications, ClearPass must have a configured SMS Gateway (typically found under the Guest module's configuration). Once the gateway is functional, the ClearPass Insight reporting engine can be configured to trigger a notification to a specific phone number or administrator group whenever a scheduled report is generated or a system alert is triggered.

ClearPass OnGuard licensing is based on the unique endpoint, not the number of connections or checks. A single device that connects via wired in the morning, Wi-Fi in the afternoon, and VPN in the evening—triggering a health check each time—will only consume one OnGuard license for that 24-hour period. This "per-device" model makes licensing predictable for enterprise deployments with roaming users.