HP HPE7-A02 Online Practice Questions and Exam Preparation

HP HPE7-A02 Online Questions & Answers

• Question 41:

  HPE Aruba Networking ClearPass Policy Manager (CPPM) uses a service to authenticate clients. You are now adding the Endpoints Repository as an authorization source for the service, and you want to add rules to the service's policies that

  apply different access levels based, in part, on a client's device category.

  You need to ensure that CPPM can apply the new correct access level after discovering new clients' categories.

  What should you enable on the service?

  A. The Posture Compliance option in the Service tab
  B. The Profile Endpoints option in the Service tab
  C. The Use cached Roles and Posture attributes from previous sessions option in the Enforcement tab
  D. The Audit End-host option in the Service tab
  B. The Profile Endpoints option in the Service tab

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  Explanation

  To ensure that HPE Aruba Networking ClearPass Policy Manager (CPPM) can apply the correct access levels based on a client's device category after discovering new clients, you need to enable the "Profile Endpoints" option in the Service tab. This option allows CPPM to profile and categorize endpoints dynamically, ensuring that the appropriate access levels are applied based on the device's characteristics. Enabling this feature ensures that new devices are accurately profiled and that access policies can be enforced based on the updated device information.

• Question 42:

  You manage AOS-10 APs with HPE Aruba Networking Central. A role is configured on these APs with the following rules:

  Allow UDP on port 67 to any destination Allow any to network 10.1.6.0/23 Deny any to network 10.1.0.0/16 + log Deny any to network 10.0.0.0/8 Allow any to any destination You add this new rule immediately before rule 2: Deny SSH to network 10.1.4.0/23 + denylist

  What happens when a client assigned to this role sends SSH traffic to 10.1.11.42?

  A. The traffic is permitted.
  B. The traffic is dropped and logged.
  C. The traffic is dropped (without any logging or further action against the client).
  D. The traffic is dropped, and the client is denylisted.
  A. The traffic is permitted.

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  Explanation

  Comprehensive Detailed

  Traffic Match Evaluation Order:

  The rules are processed in sequential order, and the first rule that matches is applied.

  The added rule only denies SSH traffic to 10.1.4.0/23 . Since 10.1.11.42 is not within the 10.1.4.0 /23 subnet, this rule does not apply.

  Next Matching Rule:

  Rule 2 permits traffic to the 10.1.6.0/23 network, but this does not include 10.1.11.42. Rule 3 denies traffic to the broader 10.1.0.0/16 network and logs it . Since 10.1.11.42 falls under this range, this rule applies, and the traffic would be logged and dropped.

  Logging and Denylist Actions:

  The denylist action in the new rule only applies to SSH traffic to 10.1.4.0/23. Since the destination is outside that range, the denylist is not triggered.

  References:

  Aruba AOS-10 Role and Firewall Rules Documentation.

  HPE Aruba Central Configuration Best Practices Guide.

• Question 43:

  A company has been running Gateway IDS/IPS on its gateways in IDS mode for several weeks. The company wants to transition to IPS mode.

  What is one step you should recommend?

  A. Disable traffic inspection and reboot before re-enabling traffic inspection with the new mode.
  B. Change the mode on one gateway at a time to establish a smoother transition period.
  C. Consider applying a stricter IPS policy to minimize issues during the transition period.
  D. Check for legitimate traffic that has been flagged as a threat and allow list the associated rules.
  D. Check for legitimate traffic that has been flagged as a threat and allow list the associated rules.

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  Explanation

  When transitioning from Intrusion Detection System (IDS) mode to Intrusion Prevention System (IPS) mode, it's critical to review and refine configurations to ensure legitimate traffic is not blocked. Here's the reasoning behind each option:

  A. Disable traffic inspection and reboot before re-enabling traffic inspection with the new mode.

  Incorrect:

  Transitioning to IPS mode does not require a full reboot or disabling traffic inspection.

  This step is unnecessary and could lead to downtime that impacts network operations.

  B. Change the mode on one gateway at a time to establish a smoother transition period.

  Incorrect:

  While a phased approach might help in some large deployments, it does not directly address the potential for legitimate traffic to be blocked by IPS mode.

  IPS operates in real-time, so misconfigured rules or policies need to be addressed before enabling IPS on any gateway.

  C. Consider applying a stricter IPS policy to minimize issues during the transition period.

  Incorrect:

  A stricter IPS policy increases the likelihood of false positives, which could disrupt legitimate business-critical traffic.

  During the transition, the focus should be on minimizing disruptions by fine-tuning policies, not making them stricter.

  D. Check for legitimate traffic that has been flagged as a threat and allow list the associated rules.

  Correct:

  In IDS mode, the system only detects and logs suspicious traffic but does not block it. Reviewing these logs for false positives allows the organization to fine-tune policies and allow list legitimate traffic before transitioning to IPS mode.

  By doing this, the company ensures that IPS mode will block actual threats while permitting legitimate traffic.

  This is a proactive step to prevent unnecessary disruptions to normal operations when IPS mode is enabled.

  References:

  HPE Aruba Gateway IDS/IPS Configuration Guide.

  Best Practices for Transitioning from IDS to IPS Modes in Aruba Networks.

  Aruba Network Threat Management Documentation.

• Question 44:

  You need to set up HPE Aruba Networking ClearPass Policy Manager (CPPM) to provide certificate- based authentication of 802.1X supplicants. How should you upload the root CA certificate for the supplicants' certificates?

  A. As a ClearPass Server certificate with the RADIUS/EAP usage.
  B. As a ClearPass Server certificate with the Database usage.
  C. As a Trusted CA with the AD/LDAP usage.
  D. As a Trusted CA with the EAP usage.
  D. As a Trusted CA with the EAP usage.

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  Explanation

  802.1X Authentication Workflow: Requires the root CA certificate of the issuing authority for the supplicants' certificates. This ensures that the server can validate the client certificate during the EAP- TLS handshake.

  Trusted CA Usage: In ClearPass, certificates with "Trusted CA" usage are used for validating client and server identities during secure authentication exchanges.

  Option A: Incorrect. The "ClearPass Server certificate" is used for server-side identity verification and is not used to validate client certificates.

  Option B: Incorrect. Database usage is unrelated to RADIUS/EAP or certificate validation. Option C:

  Incorrect. While LDAP/AD integration supports certificate validation, this is not the primary purpose of Trusted CAs for 802.1X.

  Option D: Correct. Trusted CAs for EAP are required to validate client certificates during the authentication process.

  By uploading the root CA as a "Trusted CA with EAP usage," the CPPM can properly authenticate the certificates presented by the supplicants during EAP-TLS negotiations.

• Question 45:

  A company lacks visibility into the many different types of user and loT devices deployed in its internal network, making it hard for the security team to address those devices.

  Which HPE Aruba Networking solution should you recommend to resolve this issue?

  A. HPE Aruba Networking ClearPass Device Insight (CPDI)
  B. HPE Aruba Networking Network Analytics Engine (NAE)
  C. HPE Aruba Networking Mobility Conductor
  D. HPE Aruba Networking ClearPass OnBoard
  A. HPE Aruba Networking ClearPass Device Insight (CPDI)

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  Explanation

  For a company that lacks visibility into various types of user and IoT devices on its internal network, HPE Aruba Networking ClearPass Device Insight (CPDI) is the recommended solution. CPDI provides comprehensive visibility and profiling of all devices connected to the network. It uses machine learning and AI to identify and classify devices, offering detailed insights into their behavior and characteristics. This enhanced visibility enables the security team to effectively monitor and manage network devices, improving overall network security and compliance.

• Question 46:

  A company needs you to integrate HPE Aruba Networking ClearPass Policy Manager (CPPM) with HPE Aruba Networking ClearPass Device Insight (CPDI).

  What is one task you should do to prepare?

  A. Install the root CA for CPPM's HTTPS certificate as trusted in the CPDI application.
  B. Configure WMI, SSH, and SNMP external accounts for device scanning on CPPM.
  C. Enable Insight in the CPPM server configuration settings.
  D. Collect a Data Collector token from HPE Aruba Networking Central.
  C. Enable Insight in the CPPM server configuration settings.

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  Explanation

  To integrate HPE Aruba Networking ClearPass Policy Manager (CPPM) with HPE Aruba Networking ClearPass Device Insight (CPDI), one of the necessary tasks is to enable Insight in the CPPM server configuration settings. This configuration allows CPPM to communicate and share data with CPDI, facilitating the integration and enabling enhanced device profiling and policy enforcement capabilities.

  1.Insight Enablement: Enabling Insight on the CPPM server allows it to leverage the data and capabilities of CPDI, integrating device profiling information into policy decisions.

  2.Data Sharing: This integration ensures that CPPM can receive and use detailed device information from CPDI to make more informed policy enforcement decisions.

  3.Configuration: Properly configuring the server settings to enable Insight ensures seamless communication and data flow between CPPM and CPDI.

• Question 47:

  You have installed an HPE Aruba Networking Network Analytic Engine (NAE) script on an AOS-CX switch to monitor a particular function.

  Which additional step must you complete to start the monitoring?

  A. Reboot the switch.
  B. Enable NAE, which is disabled by default.
  C. Edit the script to define monitor parameters.
  D. Create an agent from the script.
  D. Create an agent from the script.

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  Explanation

  After installing an HPE Aruba Networking Network Analytic Engine (NAE) script on an AOS-CX switch, the additional step required to start the monitoring is to create an agent from the script. The agent is responsible for executing the script

  and collecting the monitoring data as defined by the script parameters.

  1.Script Installation: Installing the script provides the logic and parameters for monitoring.

  2.Agent Creation: Creating an agent from the script activates the monitoring process, allowing the NAE to begin tracking the specified function.

  3.Operational Step: This step ensures that the monitoring logic is applied and the data collection starts as per the script's configuration.

• Question 48:

  You need to use "Tips:Posture" conditions within an 802.1X service's enforcement policy. Which guideline should you follow?

  A. Enable caching roles and posture attributes from previous sessions in the service's enforcement settings.
  B. Create rules that assign postures in the service's role mapping policy.
  C. Enable profiling in the service's general settings.
  D. Select the Posture Policy type for the service's enforcement policy.
  A. Enable caching roles and posture attributes from previous sessions in the service's enforcement settings.

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  Explanation

  When using "Tips" conditions within an 802.1X service's enforcement policy, you should enable caching roles and posture attributes from previous sessions in the service's enforcement settings. This ensures that ClearPass retains posture information from previous authentications, which is necessary for making decisions based on the current posture state of an endpoint. By caching these attributes, ClearPass can apply appropriate enforcement actions based on the device's posture status.

• Question 49:

  You are using Wireshark to view packets captured from HPE Aruba Networking infrastructure, but you're not sure that the packets are displaying correctly. In which circumstance does it make sense to configure Wireshark to ignore protection bits with the IV for the 802.11 protocol?

  A. When the traffic was captured on the data plane of an HPE Aruba Networking gateway and sent to a remote IP.
  B. When the traffic was mirrored from an AOS-CX switch port connected to an AP.
  C. When the traffic was captured from an AP with HPE Aruba Networking Central.
  D. When the traffic was captured on the control plane of an HPE Aruba Networking MC and sent to a remote IP.
  C. When the traffic was captured from an AP with HPE Aruba Networking Central.

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  Explanation

  802.11 Traffic and Protection Bits:

  In the 802.11 protocol, protection bits and the Initialization Vector (IV) are used in encrypted wireless traffic.

  If the traffic is captured directly from an AP, the frames may include encrypted content.

  Wireshark may misinterpret these protection bits or fail to display the frames correctly unless it is configured to ignore protection bits and correctly parse the IV.

  Key Scenario:

  When traffic is captured directly from an AP managed by HPE Aruba Networking Central , the frames are often captured before decryption occurs.

  In such cases, you must configure Wireshark to ignore the protection bits and handle the IV properly for correct frame interpretation.

  Option Analysis:

  Option A: Incorrect. Data plane traffic sent to a remote IP is usually decrypted, so Wireshark does not require this adjustment.

  Option B: Incorrect. Switch port mirroring captures traffic at Layer 2/3, not raw 802.11 frames.

  Option C: Correct. Traffic captured directly from an AP via HPE Aruba Networking Central often includes encrypted wireless frames, requiring Wireshark adjustments.

  Option D: Incorrect. Control plane traffic is typically management data and not raw wireless frames needing IV interpretation.

• Question 50:

  A company assigns a different block of VLAN IDs to each of its access layer AOS-CX switches. The switches run version 10.07. The IDs are used for standard purposes, such as for employees, VolP phones, and cameras. The company wants to apply 802.1X authentication to HPE Aruba Networking ClearPass Policy Manager (CPPM) and then steer clients to the correct VLANs for local forwarding.

  What can you do to simplify setting up this solution?

  A. Assign consistent names to VLANs of the same type across the AOS-CX switches and have user-roles reference names.
  B. Use the trunk allowed VLAN setting to assign multiple VLAN IDs to the same role.
  C. Change the VLAN IDs across the AOS-CX switches so that they are consistent.
  D. Avoid configuring the VLAN in the role; use trunk VLANs to assign multiple VLANs to the port instead.
  A. Assign consistent names to VLANs of the same type across the AOS-CX switches and have user-roles reference names.

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  Explanation

  To simplify the setup of 802.1X authentication with HPE Aruba Networking ClearPass Policy Manager (CPPM) and ensure clients are steered to the correct VLANs for local forwarding, you should assign consistent names to VLANs of the same type across the AOS-CX switches and have user-roles reference these names. This approach allows for a more straightforward configuration and management process, as the user roles can apply consistent policies based on VLAN names rather than specific IDs. It also helps in maintaining clarity and reducing errors in VLAN assignments across different switches.