HPE4-A50 HPE Network Security Expert Practical Exam Practice Questions
Prepare for HPE4-A50 with more than an answer.
- Level
- Expert (Master Skill Level)
- Valid for
- 3 years
Domains covered on the exam 4
- Protect and Defend55%
- Analyze20%
- Investigate5%
- Written Items20%
- 1
You are investigating a reported security breach where a rogue device was detected on the wired network. You need to identify the exact switch port, MAC address, and the time the device first connected. Which ClearPass tool provides the most granular historical view of this specific endpoint's network connection history?
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Correct answer: D
ClearPass Insight is the reporting and analytics module. The Endpoint Profile view in Insight (or the Endpoint repository history in Policy Manager, but Insight is better for historical reporting) aggregates historical data including connection times, NAD IP, port numbers, and MAC addresses, making it the primary tool for this type of forensic investigation.
- 2
In a User-Based Tunneling (UBT) deployment involving AOS-CX switches and Aruba 9004 Gateways, you observe that traffic from a client in the 'Contractor' role is not reaching the gateway. The 'show tunneled-node-server' command on the switch shows the tunnel status as 'InProgress'. What is the most likely configuration error?
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Correct answer: A
UBT establishes a GRE tunnel for data, but the control plane setup (handshake, role download, heartbeat) relies on PAPI (Aruba's proprietary protocol) over UDP port 8211. If the tunnel status hangs in 'InProgress', it often indicates that the switch is trying to establish the control connection but receiving no response, typically due to a firewall blocking UDP 8211 or a routing issue for that specific traffic.
- 3
You are designing a policy in ClearPass to handle 'Smart TV' devices. These devices do not support 802.1X. You want to use MAC Authentication but require that the device profile (fingerprint) matches a 'Smart TV' classification before allowing access. Which ClearPass Policy component is best suited to combine the MAC address check with the device fingerprint check?
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Correct answer: B
Role Mapping is the stage where you evaluate various attributes (MAC address, Device Category, Device OS, etc.) and assign a simplified 'Role' (e.g., 'SmartTV-Device'). You can create a rule that says: IF (Authentication:Mac-Auth EQUALS True) AND (Endpoint:Category EQUALS SmartDevice) THEN Role = SmartTV. This role is then used in the Enforcement Policy to determine VLAN/ACLs.
- 4
A large financial institution is deploying a Zero Trust Security model using HPE Aruba Networking solutions. The design requires that all IoT devices connected to Aruba CX 6300 switches are automatically placed into a specific VXLAN-based overlay network without manual port configuration. The devices must be profiled by ClearPass, and the switch must download the tunneling configuration dynamically. Which mechanism should be configured on the AOS-CX switches and ClearPass to achieve this requirement?
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Correct answer: B
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.
- 5
You are integrating a third-party Mobile Device Management (MDM) system with ClearPass Policy Manager to enforce compliance checks for employee smartphones. The requirement is to deny network access if the device is 'Jailbroken' or 'Rooted'. After configuring the Endpoint Context Server in ClearPass, what is the immediate next step to use this data in an enforcement policy?
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Correct answer: A
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.
- 6
A network administrator is designing a PKI solution for 802.1X authentication. The security policy mandates that all Windows corporate laptops authenticate using certificates issued by the internal Microsoft CA. The ClearPass server must validate the revocation status of these certificates in real-time. Which two configuration steps are required to meet this requirement? (Select TWO)
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Correct answer: B, D
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.
To validate client certificates, ClearPass must trust the issuing CA. This requires importing the Root and any Intermediate CA certificates into the Trust List.
