HP HPE7-A02 Online Practice Questions and Exam Preparation

HP HPE7-A02 Online Questions & Answers

• Question 21:

  A company has AOS-CX switches at the access layer, managed by HPE Aruba Networking Central. You have identified suspicious activity on a wired client. You want to analyze the client's traffic with Wireshark, which you have on your management station.

  What should you do?

  A. Access the client's switch's CLI from your management station. Access the switch shell and run a TCP dump on the client port.
  B. Go to the client's switch in HPE Aruba Networking Central. Use the "Security" page to run a packet capture.
  C. Set up a policy that implements a captive portal redirect to your management station. Apply that policy to the client's port.
  D. Set up a mirror session on the client's switch; set the client port as the source and your station IP address as the tunnel destination.
  D. Set up a mirror session on the client's switch; set the client port as the source and your station IP address as the tunnel destination.

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  Explanation

  Why a Mirror Session Is the Correct Choice

  To analyze a wired client's traffic with Wireshark, you need the traffic mirrored to your management station where Wireshark is installed. The most effective way to achieve this is by configuring a mirror session on the AOS-CX switch,

  specifying the client port as the source and your management station as the destination.

  Analysis of Each Option

  A. Access the client's switch's CLI from your management station. Access the switch shell and run a TCP dump on the client port:

  Incorrect:

  AOS-CX switches do not natively support packet capture (e.g., tcpdump) directly on the switch CLI.

  This approach is not feasible for capturing and analyzing live client traffic.

  B. Go to the client's switch in HPE Aruba Networking Central. Use the "Security" page to run a packet capture:

  Incorrect:

  HPE Aruba Networking Central provides security insights but does not directly support initiating packet captures for detailed analysis.

  Traffic analysis with tools like Wireshark requires local packet capture at the management station.

  C. Set up a policy that implements a captive portal redirect to your management station. Apply that policy to the client's port:

  Incorrect:

  Captive portals are designed for user authentication and redirection, not traffic analysis.

  This would disrupt the client's network activity without enabling traffic analysis in Wireshark.

  D. Set up a mirror session on the client's switch; set the client port as the source and your station IP address as the tunnel destination:

  Correct:

  Mirroring the client port to your management station is the standard method for analyzing live network traffic with Wireshark.

  Steps include:

  Configure a mirror session on the client's AOS-CX switch.

  Set the client's port as the source .

  Set your management station as the destination using its IP address (via GRE tunnel or physical interface).

  Start capturing traffic with Wireshark on the management station.

  Final Recommendation

  To analyze the client's traffic, configure a mirror session on the switch, set the client port as the source, and direct the traffic to your management station where Wireshark is running.

  References:

  AOS-CX Switch Port Mirroring Configuration Guide.

  HPE Aruba Networking Central Monitoring and Troubleshooting Best Practices.

  Wireshark Traffic Analysis and Capture Techniques.

• Question 22:

  A company is using HPE Aruba Networking ClearPass Device Insight (CPDI) (the standalone application). In the CPDI security settings, Security Analysis is On, the Data Source is ClearPass Device Insight, and Enable Posture Assessment is On. You see that a device has a Risk Score of 90.

  What can you know from this information?

  A. The posture is unknown, and CPDI has detected exactly four vulnerabilities on the device.
  B. The posture is healthy, but CPDI has detected multiple vulnerabilities on the device.
  C. The posture is unhealthy, and CPDI has also detected at least one vulnerability on the device.
  D. The posture is unhealthy, but CPDI has not detected any vulnerabilities on the device.
  C. The posture is unhealthy, and CPDI has also detected at least one vulnerability on the device.

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  Explanation

  1.Understanding CPDI Risk Score and Posture Analysis

  The Risk Score in ClearPass Device Insight (CPDI) is a numerical value representing the overall risk level associated with a device. It considers factors such as:

  Posture Assessment: The device's compliance with health policies (e.g., OS updates, antivirus status).

  Security Analysis: Vulnerabilities detected on the device, such as known exploits or weak configurations.

  A Risk Score of 90 indicates a high-risk device, suggesting that the posture is unhealthy and vulnerabilities have been detected.

  2.Analysis of Each Option

  A. The posture is unknown, and CPDI has detected exactly four vulnerabilities on the device:

  Incorrect:

  The posture cannot be "unknown" because posture assessment is enabled in the settings.

  CPDI does not explicitly indicate the exact number of vulnerabilities directly through the Risk Score.

  B. The posture is healthy, but CPDI has detected multiple vulnerabilities on the device:

  Incorrect:

  A Risk Score of 90 is too high for a "healthy" posture. A healthy posture would typically result in a lower Risk Score.

  C. The posture is unhealthy, and CPDI has also detected at least one vulnerability on the device:

  Correct:

  A high Risk Score of 90 indicates an unhealthy posture.

  The presence of vulnerabilities (based on Security Analysis being enabled) further justifies the high Risk Score.

  This combination of unhealthy posture and detected vulnerabilities aligns with the Risk Score and configuration provided.

  D. The posture is unhealthy, but CPDI has not detected any vulnerabilities on the device:

  Incorrect:

  If no vulnerabilities were detected, the Risk Score would not be as high as 90, even if the posture were unhealthy.

  Final Interpretation

  From the configuration and Risk Score provided, the device's posture is unhealthy, and at least one vulnerability has been detected by CPDI.

  References:

  HPE Aruba ClearPass Device Insight Deployment Guide.

  CPDI Risk Score Analysis and Security Settings Documentation.

  Best Practices for Posture Assessment in Aruba Networks.

• Question 23:

  A security team needs to track a device's communication patterns and identify patterns such as how many destinations the device is accessing. Which Aruba solution can show this information at a glance?

  A. HPE Aruba Networking ClearPass Insight Endpoints and Network Dashboards
  B. HPE Aruba Networking ClearPass Policy Manager (CPPM) live monitoring Access Tracker
  C. HPE Aruba Networking ClearPass Device Insight (CPDI) under a device's network activity
  D. AOS-CX Analytics Dashboard using the system-installed NAE agent
  C. HPE Aruba Networking ClearPass Device Insight (CPDI) under a device's network activity

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  Explanation

  HPE Aruba Networking ClearPass Device Insight (CPDI) can show detailed information about a device's communication patterns, including how many destinations the device is accessing. CPDI provides comprehensive visibility into the behavior and activity of devices on the network, allowing the security team to track and analyze communication patterns at a glance. This information is critical for identifying anomalies and potential security threats.

• Question 24:

  A company uses both HPE Aruba Networking ClearPass Policy Manager (CPPM) and HPE Aruba Networking ClearPass Device Insight (CPDI).

  What is one way integrating the two solutions can help the company implement Zero Trust Security?

  A. CPPM can provide CPDI with custom device fingerprint definitions in order to enhance the company's total visibility.
  B. CPDI can provide CPPM with extra information about users' identity; CPPM can then use that information to apply the correct identity-based enforcement.
  C. CPPM can inform CPDI that it has assigned a particular Aruba-User-Role to a client; CPDI can then use that information to reclassify the client.
  D. CPDI can use tags to inform CPPM that clients are using prohibited applications; CPPM can then tell the network infrastructure to quarantine those clients.
  D. CPDI can use tags to inform CPPM that clients are using prohibited applications; CPPM can then tell the network infrastructure to quarantine those clients.

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  Explanation

  Integrating HPE Aruba Networking ClearPass Policy Manager (CPPM) and HPE Aruba Networking ClearPass Device Insight (CPDI) can help a company implement Zero Trust Security by allowing CPDI to use tags to inform CPPM that clients are using prohibited applications. CPPM can then take action, such as telling the network infrastructure to quarantine those clients, ensuring that only compliant and trusted devices have network access.

  1.Device Insight Tags: CPDI can monitor client behavior and tag devices that are using prohibited applications.

  2.Policy Enforcement: CPPM can use these tags to apply specific enforcement actions, such as quarantining non-compliant devices.

  3.Zero Trust Implementation: This integration supports Zero Trust Security by ensuring that all devices are continuously monitored and controlled based on their behavior and compliance with security policies.

• Question 25:

  You are deploying a virtual Data Collector for use with HPE Aruba Networking ClearPass Device Insight (CPDI). You have identified VLAN 101 in the data center as the VLAN to which the Data Collector should connect to receive its IP address and connect to HPE Aruba Networking Central.

  Which Data Collector virtual ports should you tell the virtual admins to connect to VLAN 101?

  A. The one with the lowest MAC address
  B. The one with the highest port ID
  C. The one with the highest MAC address
  D. The one with the lowest port ID
  D. The one with the lowest port ID

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  Explanation

  When deploying a virtual Data Collector for HPE Aruba Networking ClearPass Device Insight (CPDI), it is essential to ensure that the correct virtual port is connected to the designated VLAN. In this case, VLAN 101 is used to receive the IP address and connect to Aruba Central. The best practice is to use the virtual port with the lowest port ID. This is typically the primary port used for management and network connectivity in virtual environments, ensuring proper network integration and communication.

• Question 26:

  The following firewall role is configured on HPE Aruba Networking Central-managed APs:

  wlan access-rule employees

  index 3

  rule any any match 17 67 67 permit

  rule any any match any 53 53 permit

  rule 10 5 5.0 255.255 255.0 match any any any deny

  rule 10.5 0.0 255.255 0.0 match 6 80 80 permit

  rule 10.5 0.0 255.255.0.0 match 6 443 443 permit

  rule 10.5.0.0 255.255.0.0 match any any any deny

  rule any any match any any any permit

  A client has authenticated and been assigned to the employees role. The client has IP address 10.2.2.2. Which correctly describes behavior in this policy?

  A. HTTPS traffic from 10.2.2.2 to 10.5.5.5 is denied.
  B. HTTPS traffic from 10.2.2.2 to 203.0.113.12 is denied.
  C. Traffic from 10.5.3.3 in an active HTTPS session between 10.2.2.2 and 10.5.3.3 is permitted. Traffic
  D. from 198.51.100.12 in an active HTTP session between 10.2.2.2 and 198.51.100.12 is denied.
  A. HTTPS traffic from 10.2.2.2 to 10.5.5.5 is denied.

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  Explanation

  Policy Analysis:

  Rule Evaluation Order: Rules are applied in sequential order until a match is found.

  Key Points:

  DHCP traffic (UDP 67) is permitted.

  DNS traffic (UDP 53) is permitted.

  Traffic to 10.5.5.0/24 is explicitly denied.

  HTTP traffic (TCP 80) is allowed only to 10.5.0.0/16. HTTPS traffic (TCP 443) is allowed only to 10.5.0.0/16. All other traffic to 10.5.0.0/16 is denied.

  Any other traffic not matching the above rules is permitted.

  Scenario Analysis:

  The client IP 10.2.2.2 does not fall within the 10.5.0.0/16 subnet.

  Rule 3 denies traffic to 10.5.5.5, regardless of the source IP.

  Option A: Correct. HTTPS traffic to 10.5.5.5 is explicitly denied by Rule 3. Option B: Incorrect. Traffic to 203.0.113.12 is permitted due to the final "permit any" rule.

  Option C: Incorrect. The client (10.2.2.2) does not belong to the subnet 10.5.0.0/16, so traffic to 10.5.3.3 is not permitted by Rule 5. Option D: Incorrect. HTTP traffic to 198.51.100.12 is allowed by the last "permit any" rule.

• Question 27:

  An AOS-CX switch has been configured to implement UBT to a cluster of three HPE Aruba Networking gateways.

  How does the switch determine to which gateways to tunnel UBT users' traffic?

  A. The switch tunnels all users' traffic to the gateway configured as the primary gateway in the UBT zone, unless that gateway fails.
  B. The switch tunnels each user's traffic to the particular gateway assigned as that user's active user designed gateway.
  C. The switch load balances client traffic across the primary and standby gateway configured in the UBT zone.
  D. The switch tunnels all users' traffic to the gateway assigned as the switch's active device designated gateway.
  B. The switch tunnels each user's traffic to the particular gateway assigned as that user's active user designed gateway.

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  Explanation

  When an AOS-CX switch implements User-Based Tunneling (UBT) to a cluster of three HPE Aruba Networking gateways, the switch determines to which gateway to tunnel each user's traffic based on the particular gateway assigned as that user's active user designated gateway. This ensures that traffic is efficiently distributed and managed according to the designated gateway for each user.

  1.User Designated Gateway: Each user's traffic is tunneled to a specific gateway that has been designated for that user, ensuring efficient handling of traffic.

  2.Traffic Distribution: This method allows for balanced distribution of user traffic across multiple gateways, enhancing network performance and reliability.

  3.Gateway Assignment: The switch uses the assigned gateway for each user to determine the tunneling path, ensuring that traffic is directed to the appropriate gateway.

• Question 28:

  An AOS-CX switch has this admin user account configured on it:

  netadmin in the operators group.

  You have configured these commands on an AOS-CX switch:

  tacacs-server host cp.example.com key plaintext and12xl,powmay7855

  aaa authentication login ssh group tacacs local

  aaa authentication allow-fail-through

  A user accesses the switch with SSH and logs in as netadmin with the correct password. When the switch sends a TACACS+ request to the ClearPass server at cp.example.com, the server does not send a response. Authentication times out.

  What happens?

  A. The user is logged in and granted operator access.
  B. The user is logged in and allowed to enter auditor commands only.
  C. The user is logged in and granted administrators access.
  D. The user is not allowed to log in.
  A. The user is logged in and granted operator access.

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  Explanation

  Comprehensive Detailed

  Explanation

  The configuration includes the command aaa authentication allow-fail-through, which specifies that if the TACACS+ server fails to respond (e.g., times out), the switch will proceed to the next authentication method in the sequence, which is

  local. In this scenario:

  The switch first attempts to authenticate the user against the TACACS+ server.

  When the TACACS+ server fails to respond, the switch falls back to local authentication.

  The user netadmin is a local account configured on the switch and belongs to the operators group.

  As a result, the user is successfully authenticated locally and is granted operator level access.

  References:

  Aruba AOS-CX User Guide: Authentication fallback mechanisms.

  TACACS+ fallback behavior for HPE Aruba switches.

• Question 29:

  A company uses HPE Aruba Networking ClearPass Policy Manager (CPPM) and HPE Aruba Networking ClearPass Device Insight (CPDI) and has integrated the two. CPDI admins have created a tag. CPPM admins have created rules that use that tag in the wired 802.1X and wireless 802.1X services' enforcement policies.

  The company requires CPPM to apply the tag-based rules to a client directly after it learns that the client has that tag.

  What is one of the settings that you should verify on CPPM?

  A. The "Device Sync" setting is set to 1 in the ClearPass Device Insight Integration settings.
  B. Both 802.1X services have the "Profile Endpoints" option enabled and an appropriate CoA profile selected in the Profiler tab.
  C. Both 802.1X services have the "Use cached Role and Posture attributes from the previous sessions" setting.
  D. The "Polling Interval" is set to 1 in the ClearPass Device Insight Integration settings.
  B. Both 802.1X services have the "Profile Endpoints" option enabled and an appropriate CoA profile selected in the Profiler tab.

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  Explanation

  To ensure that HPE Aruba Networking ClearPass Policy Manager (CPPM) applies tag-based rules to a client immediately after learning the client has that tag, verify that both 802.1X services have the "Profile Endpoints" option enabled and an appropriate Change of Authorization (CoA) profile selected in the Profiler tab. This setup ensures that when a device is profiled and tagged, CPPM can immediately enforce the updated policies through CoA.

  1.Profile Endpoints: Enabling this option ensures that endpoint profiling is active, allowing CPPM to gather and use device information dynamically.

  2.CoA Profile: Selecting an appropriate CoA profile ensures that CPPM can push policy changes immediately to the network devices, applying the new rules without delay.

  3.Real-Time Enforcement: This configuration allows for the immediate application of new tags and associated policies, ensuring compliance with security requirements.

• Question 30:

  You have enabled "rogue AP containment" in the Wireless IPS settings for a company's HPE Aruba Networking APs. What form of containment does HPE Aruba Networking recommend?

  A. Wireless deauthentication only
  B. Wireless tarpit and wired containment
  C. Wireless tarpit only
  D. Wired containment
  A. Wireless deauthentication only

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  Explanation

  Rogue AP Containment Methods:

  HPE Aruba Networking recommends using wireless deauthentication as the preferred method for rogue AP containment.

  Deauthentication sends deauth frames to clients connected to rogue APs, causing them to disconnect. This method is effective without introducing unnecessary disruptions to the wired infrastructure.

  Key Points:

  Wireless Deauthentication is simple, efficient, and widely supported across client devices.

  Tarpit Containment is more aggressive and may cause unintentional disruptions to legitimate clients.

  Wired Containment involves blocking traffic at the switch level but is complex and may impact legitimate infrastructure traffic.

  Option Analysis:

  Option A: Correct. Wireless deauthentication is the recommended method as it targets rogue AP clients without excessive network impact.

  Option B: Incorrect. Combining wireless tarpit and wired containment is overkill and not typically recommended.

  Option C: Incorrect. Wireless tarpit can be effective but is generally not the first choice due to its aggressive nature.

  Option D: Incorrect. Wired containment is more complex and reserved for specific use cases, not general recommendations.