Free HPE4-A50 sample questions

Correct answer: Configure User-Based Tunneling (UBT) on the CX switches and return a Downloadable User Role (DUR) from ClearPass containing the 'gateway-zone' and 'reserved-vlan' attributes.

For dynamic VXLAN-based segmentation (often part of a User-Based Tunneling or UBT setup in modern AOS-CX architectures interacting with gateways), the ClearPass Policy Manager must return a Downloadable User Role (DUR) or Local User Role that specifies the gateway zone and the reserved VLAN (or VNI mapping) to direct traffic into the tunnel. This enables the 'colorless port' concept where the switch dynamically tunnels traffic based on the authenticated role.

Correct answer: Map the MDM attributes to ClearPass attributes by configuring the Context Server Actions or ensuring the dictionary is updated.

After defining the Endpoint Context Server, you must ensure ClearPass knows how to interpret the data received. This often involves verifying the Context Server Actions (polling or webhook handling) or mapping the incoming MDM attributes (like 'device_compromised') to ClearPass dictionary attributes so they can be referenced in Role Mapping or Enforcement Policies.

Correct answers: Import the Microsoft CA's Root and Intermediate certificates into the ClearPass Trust List.; Configure an OCSP Responder URL in the ClearPass Authentication Source or Trust List entry for the CA.

To validate client certificates, ClearPass must trust the issuing CA. This requires importing the Root and any Intermediate CA certificates into the Trust List.

Real-time revocation checking requires OCSP (Online Certificate Status Protocol). The OCSP URL must be configured in ClearPass (often within the CA certificate details in the Trust List or the Authentication Method settings) to allow it to query the CA's status responder.

Correct answer: Current/L3/Neighbors/ARP

In the AOS-CX REST API and NAE database structure, ARP table information is typically found under the L3/Neighbors/ARP path (or similar depending on exact version, but 'Neighbors' is the key resource for ARP entries). Monitoring changes in this resource allows the script to track MAC address associations for IPs.

Correct answer: True

True. In production environments where availability is critical, 'Fail-Open' is the standard best practice configuration. It ensures that if the IDS/IPS inspection engine fails or is overwhelmed, traffic is permitted to pass through without inspection rather than dropping all traffic (Fail-Close), which would cause a network outage.

Correct answer: port-access role vlan access 20 associate policy RESTRICT_HR

AOS-CX uses a structured configuration format for DURs. The content typically defines the role context and then its attributes. The correct syntax involves 'port-access role', setting the 'vlan access', and associating the policy (ACL). The syntax is distinct from the older AOS 8 style.