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NEW QUESTION # 77
A security administrator at a company detects unauthorized devices attempting to connect to the network. The company uses Aruba ClearPass for authentication.
Which solution should the administrator implement to automatically detect and block unauthorized devices?
- A. Increase DHCP lease expiration time
- B. Enable CPDI Profiling
- C. Use LLDP Discovery
- D. Enable static VLAN assignment
Answer: B
NEW QUESTION # 78
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 Devices Insight, and Enable Posture Assessment is On. You see that device has a Risk Score of
90.
What can you know from this information?
- A. The posture is unhealthy, but CPDI has not detected any vulnerabilities on the device.
- B. The posture is healthy, but CPDI has detected multiple vulnerabilities on the device.
- C. The posture is unknown, and CPDI has detected exactly four vulnerabilities on the device.
- D. The posture is unhealthy, and CPDI has also detected at least one vulnerability on the device.
Answer: D
Explanation:
In HPE Aruba Networking ClearPass Device Insight (CPDI), a device with a Risk Score of 90 indicates that the posture is unhealthy, and CPDI has detected at least one vulnerability on the device. The risk score is a reflection of the device's security posture and detected vulnerabilities.
A high risk score, such as 90, typically signifies significant security concerns, including the presence of vulnerabilities that could be exploited, thereby categorizing the device as a high-risk asset within the network.
NEW QUESTION # 79
Refer to the Exhibit:
These packets have been captured from VLAN 10. which supports clients that receive their IP addresses with DHCP.
What can you interpret from the packets that you see here?
These packets have been captured from VLAN 10, which supports clients that receive their IP addresses with DHCP. What can you interpret from the packets that you see here?
- A. An admin has likely misconfigured two clients to use the same DHCP settings.
- B. Someone is possibly implementing an ARP poisoning and MITM attack.
- C. The mirroring session that captured the packets was likely misconfigured and captured duplicate traffic.
- D. Someone is possibly implementing a MAC spoofing attack to gain unauthorized access.
Answer: D
Explanation:
The exhibit reveals duplicate IP addresses detected for 10.1.140.6, associated with two different MAC addresses:
88:56:56:ab:c6:89
88:13:30:a3:02:00
Key observations:
Duplicate IP Address Detection:
The message " Duplicate IP address detected for 10.1.140.6 " clearly indicates two devices claiming the same IP address.
This typically occurs when one device spoofs the MAC address of another device to intercept or disrupt traffic.
MAC Spoofing Context:
MAC spoofing is a tactic used to impersonate another device ' s hardware address to gain unauthorized access to a network.
By spoofing a legitimate IP-MAC pairing, an attacker can bypass security mechanisms or cause denial-of- service conditions.
Why the Other Options are Incorrect:
Option B (Mirroring Misconfigured): While mirroring misconfiguration can duplicate traffic, it does not lead to a " duplicate IP detected " alert.
Option C (Misconfigured DHCP): Misconfigurations usually result in DHCP conflicts, but they do not typically involve two different MAC addresses for the same IP.
Option D (ARP Poisoning/MITM): ARP poisoning involves falsified ARP tables, but it does not directly trigger duplicate IP address detection. Instead, ARP packets flood the network.
Conclusion:
The evidence strongly suggests MAC spoofing, as two different MAC addresses are claiming the same IP address (10.1.140.6). This behavior is typical of attempts to gain unauthorized access or disrupt network operations.
NEW QUESTION # 80
A company has Aruba APs that are controlled by Central and that implement WIDS. When you check WIDS events, you see a "detect valid SSID misuse" event. What can you interpret from this event, and what steps should you take?
- A. Clients are failing to authenticate to corporate SSIDs. You should first check for misconfigured authentication settings and then investigate a possible threat.
- B. Admins have likely misconfigured SSID security settings on some of the company's APs. You should have them check those settings.
- C. This event might be a threat but is almost always a false positive. You should wait to see the event over several days before following up on it.
- D. Hackers are likely trying to pose as authorized APs. You should use the detecting radio information and immediately track down the device that triggered the event.
Answer: D
Explanation:
The "Detect Valid SSID Misuse" event in Aruba's Wireless Intrusion Detection System (WIDS) indicates that a valid SSID, associated with your network, is being broadcast from an unauthorized source. This scenario often signals a potential rogue access point attempting to deceive clients into connecting to it (e.g., for credential harvesting or man-in-the-middle attacks).
1. Explanation of Each Option
A: Clients are failing to authenticate to corporate SSIDs. You should first check for misconfigured authentication settings and then investigate a possible threat:
* Incorrect:
* This event is not related to authentication failures by legitimate clients.
* Misconfigured authentication settings would lead to events like "authentication failures" or
"radius issues," not "valid SSID misuse."
B: Admins have likely misconfigured SSID security settings on some of the company's APs. You should have them check those settings:
* Incorrect:
* This event refers to an external device broadcasting your SSID, not misconfiguration on the company's authorized APs.
* WIDS differentiates between valid corporate APs and rogue APs.
C: Hackers are likely trying to pose as authorized APs. You should use the detecting radio information and immediately track down the device that triggered the event:
* Correct:
* This is the most likely cause of the "detect valid SSID misuse" event. A rogue AP broadcasting a corporate SSID could lure clients into connecting to it, exposing sensitive credentials or traffic.
* Immediate action includes:
* Using the radio information from the event logs to identify the rogue AP's location.
* Physically locating and removing the rogue device.
* Strengthening WIPS/WIDS policies to prevent further misuse.
D: This event might be a threat but is almost always a false positive. You should wait to see the event over several days before following up on it:
* Incorrect:
* While false positives are possible, "valid SSID misuse" is a critical security event that should not be ignored.
* Delaying action increases the risk of successful attacks against your network.
2. Recommended Steps to Address the Event
* Review Event Logs:
* Gather details about the rogue AP, such as SSID, MAC address, channel, and signal strength.
* Locate the Rogue Device:
* Use the detecting AP's radio information and signal strength to triangulate the rogue AP's physical location.
* Respond to the Threat:
* Remove or disable the rogue device.
* Notify the security team for further investigation.
* Prevent Future Misuse:
* Strengthen security policies, such as enabling client whitelists or enhancing WIPS protection.
References
* Aruba WIDS/WIPS Configuration and Best Practices Guide.
* Aruba Central Security Event Analysis Documentation.
* Wireless Threat Management Using Aruba Networks.
NEW QUESTION # 81
What is a typical use case for using HPE Aruba Networking ClearPass Onboard to provision devices?
- A. Enforcing posture-based assessment on managed Windows domain computers
- B. Enhancing security for loT devices that need to authenticate with MAC-Auth
- C. Enabling managed Windows domain computers to succeed at certificate-based 802.1X
- D. Enabling unmanaged devices to succeed at certificate-based 802.1X
Answer: D
Explanation:
A typical use case for using HPE Aruba Networking ClearPass Onboard is to provision unmanaged devices to succeed at certificate-based 802.1X authentication. ClearPass Onboard allows users to securely configure their personal devices with the necessary certificates and network settings to authenticate on the network using 802.1X, which enhances security and simplifies the onboarding process for unmanaged devices.
1.Certificate-Based Authentication: ClearPass Onboard simplifies the process of issuing and installing certificates on unmanaged devices, ensuring they can authenticate securely using 802.1X.
2.User-Friendly Onboarding: The Onboard process is user-friendly, guiding users through the steps needed to configure their devices for network access.
3.Enhanced Security: By using certificates for authentication, the solution provides a higher level of security compared to traditional username/password methods.
NEW QUESTION # 82
A company has HPE Aruba Networking APs and AOS-CX switches. The APs bridge wireless traffic. They receive DHCP IP addresses on VLAN 18. Wireless users are assigned to VLAN 12.
The company wants the APs to start using 802.1X authentication on their switch ports. You are configuring the port-access role to which the APs are assigned after authentication.
What is one recommended setting for that role?
- A. Access VLAN 18 with no support for VLAN 12
- B. Trust for DSCP
- C. Auth-mode left at client-mode
- D. No trust for DSCP
Answer: B
Explanation:
When a switch port connects to a wireless AP that bridges multiple client VLANs, best practice is to:
* Keep the VLAN/trunking configuration on the interface (not forced by the role), so that both VLAN 18 (AP management) and VLAN 12 (clients) are supported.
* Enable trust of DSCP on the AP uplink so that QoS markings from the AP (voice, real-time traffic) are honored end-to-end, instead of being remarked or reset at the switch. Aruba wired-access and campus deployment guides repeatedly recommend trusting DSCP on AP uplinks so that WMM/802.11e markings are preserved.
Option D ("Access VLAN 18 with no support for VLAN 12") would break the design because the AP needs to carry client VLAN 12 across its uplink. Option C (auth-mode client-mode) is about how many supplicants per port are authenticated; it is not the key "recommended" setting in this scenario, and Aruba designs typically focus QoS for AP uplinks via trust settings.
Therefore, the recommended role setting here is to trust DSCP on the AP's authenticated role # Option B.
NEW QUESTION # 83
Refer to Exhibit.
A company is using HPE Aruba Networking ClearPass Device Insight (CPDI) (the standalone application). In the CPDI interface, you go to the Generic Devices page and see the view shown in the exhibit.
What correctly describes what you see?
- A. Each cluster is a group of devices that match one of the tags configured by admins.
- B. Each cluster is a group of unclassified devices that CPDI's machine learning has discovered to have similar attributes.
- C. Each cluster is all the devices that have been assigned to the same category by one of CPDI's built-in system rules.
- D. Each cluster is a group of devices that have been classified with user rules, but for which CPDI offers different recommendations.
Answer: B
Explanation:
In HPE Aruba Networking ClearPass Device Insight (CPDI), the clusters shown in the exhibit represent groups of unclassified devices that CPDI's machine learning algorithms have identified as having similar attributes. These clusters are formed based on observed characteristics and behaviors of the devices, helping administrators to categorize and manage devices more effectively.
1.Machine Learning: CPDI uses machine learning to analyze device attributes and group them into clusters based on similarities.
2.Unclassified Devices: These clusters typically represent devices that have not yet been explicitly classified by admins but share common attributes that suggest they belong to the same category.
3.Management: This clustering helps in simplifying the process of managing and applying policies to groups of similar devices.
Reference: ClearPass Device Insight documentation on device clustering and machine learning provides detailed information on how devices are grouped into clusters based on observed attributes and behaviors.
NEW QUESTION # 84
Which endpoint classification method requires direct device interrogation for identification?
- A. DHCP lease duration
- B. Passive profiling
- C. Active profiling
- D. Static VLAN tagging
Answer: C
NEW QUESTION # 85
You are setting up HPE Aruba Networking SSE. Which use case requires you to apply a non- default device posture in a rule?
- A. Redirecting compromised clients to a remediation server
- B. Checking whether a client has antivirus software as a condition for receiving access to resources
- C. Integrating with HPE Aruba Networking ClearPass OnGuard
- D. Applying threat inspection to users when they access certain websites
Answer: B
Explanation:
This use case explicitly requires device posture assessment, which involves evaluating the device for attributes like antivirus software, patch levels, or other compliance criteria. Non-default device posture rules are configured to assess these conditions and enforce the appropriate policy based on the device's state.
NEW QUESTION # 86
A company has HPE Aruba Networking APs running AOS-10 and managed by HPE Aruba Networking Central. The company also has AOS-CX switches. The security team wants you to capture traffic from a particular wireless client. You should capture this client's traffic over a 15 minute time period and then send the traffic to them in a PCAP file.
What should you do?
- A. Access the CLI for the client's AP's switch. Set up a mirroring session between the AP's port and a management station running Wireshark.
- B. Go to the client's AP in HPE Aruba Networking Central. Use the "Security" page to run a packet capture.
- C. Go to that client in HPE Aruba Networking Central. Use the "Live Events" page to run a packet capture.
- D. Access the CLI for the client's AP. Set up a mirroring session between its radio and a management station running Wireshark.
Answer: B
Explanation:
To capture traffic from a particular wireless client for a 15-minute period and then send the traffic in a PCAP file, you should go to the client's AP in HPE Aruba Networking Central and use the "Security" page to run a packet capture. This method allows you to directly capture the client's traffic from the AP managing the wireless connection, ensuring that you gather the relevant traffic data for analysis.
1.Centralized Management: HPE Aruba Networking Central provides a centralized interface for managing and monitoring APs, making it easy to initiate packet captures.
2.Security Page: The "Security" page in Aruba Central includes tools for running packet captures, allowing you to specify the duration and other parameters.
3.Ease of Use: This approach simplifies the process by using the built-in features of Aruba Central, avoiding the need for complex CLI commands or additional hardware.
Reference: Aruba Central's documentation and user guides detail the steps for performing packet captures through the Central interface, including capturing traffic from specific clients and generating PCAP files for analysis.
NEW QUESTION # 87
A company has HPE Aruba Networking Central-managed APs. The APs enforce 802.1X authentication for clients connected to the MyCompany SSID. Some clients are assigned to the
"contractors" role. You have created a firewall rule for the "contractors" role that uses this extended action: denylist, or blacklist in older software versions.
Which additional step must you take to ensure that the action is applied?
- A. Enable denylisting, or blacklisting, in contractor role settings.
- B. Enable denylisting, or blacklisting, in the MyCompany SSID settings.
- C. Enable Client IDS at the medium level in the security settings.
- D. Enable Client IPS at the medium level in the security settings.
Answer: B
Explanation:
A firewall rule can specify a denylist action, but the WLAN/SSID must also permit denylisting behavior for that action to take effect. The denylist feature is applied in the SSID client-access context because clients connect through that SSID. Enabling denylisting in the MyCompany SSID settings allows clients that match the contractors role firewall rule to be placed on the denylist when they violate the rule. Client IDS and Client IPS are separate wireless security detection features and are not the required setting for this role-based firewall action. Enabling a setting only inside the contractor role is not the correct control point. The required additional step is enabling denylisting in the SSID configuration.
NEW QUESTION # 88
Refer to Exhibit. A company is using HPE Aruba Networking ClearPass Device Insight (CPDI) (the standalone application). In the CPDI interface, you go to the Generic Devices page and see the view shown in the exhibit.
What correctly describes what you see?
- A. Each cluster is a group of devices that match one of the tags configured by admins.
- B. Each cluster is a group of unclassified devices that CPDI's machine learning has discovered to have similar attributes.
- C. Each cluster is a group of devices that have been classified with user rules, but for which CPDI offers different recommendations.
- D. Each cluster is all the devices that have been assigned to the same category by one of CPDI's built- in system rules.
Answer: B
Explanation:
In HPE Aruba Networking ClearPass Device Insight (CPDI), the clusters shown in the exhibit represent groups of unclassified devices that CPDI's machine learning algorithms have identified as having similar attributes. These clusters are formed based on observed characteristics and behaviors of the devices, helping administrators to categorize and manage devices more effectively.
1. Machine Learning: CPDI uses machine learning to analyze device attributes and group them into clusters based on similarities.
2. Unclassified Devices: These clusters typically represent devices that have not yet been explicitly classified by admins but share common attributes that suggest they belong to the same category.
3. Management: This clustering helps in simplifying the process of managing and applying policies to groups of similar devices.
NEW QUESTION # 89
Which authentication protocol is used in Aruba VPN deployments for secure user authentication?
- A. WEP
- B. PPTP
- C. ARP
- D. EAP-TLS
Answer: D
NEW QUESTION # 90
A company has AOS-CX switches and is implementing authentication to HPE Aruba Networking ClearPass Policy Manager (CPPM). The company wants to monitor each switch's connectivity to CPPM. If connectivity is lost, the switch should trigger an alert and collect some information with CLI commands.
What can you do to support this use case?
- A. Use the switches' NAE functions to monitor connectivity to CPPM.
- B. Discover the switches within HPE Aruba Networking Central and set up Aruba Central connectivity alerts in the switch group.
- C. Configure the switches to implement RADIUS accounting to CPPM and enable ClearPass Insight.
- D. Enable Control Plane Policing on the switches on the VRF on which they connect to CPPM.
Answer: A
Explanation:
AOS-CX Network Analytics Engine is designed for local monitoring, alerting, and automated diagnostics. An NAE agent can monitor connectivity to a critical service such as ClearPass Policy Manager. If the switch loses connectivity to CPPM, the NAE agent can trigger an alert and run CLI commands to collect relevant troubleshooting information at the time of failure. CoPP protects the switch control plane but does not monitor CPPM reachability or collect diagnostics. RADIUS accounting and ClearPass Insight help with session reporting, not switch-side failure detection.
Aruba Central alerts are useful for cloud visibility, but they do not provide the same local diagnostic automation. NAE is the correct tool for this monitoring workflow.
NEW QUESTION # 91
You are setting up HPE Aruba Networking SSE. Which use case requires you to apply a non-default device posture in a rule?
- A. Redirecting compromised clients to a remediation server
- B. Checking whether a client has antivirus software as a condition for receiving access to resources
- C. Integrating with HPE Aruba Networking ClearPass OnGuard
- D. Applying threat inspection to users when they access certain websites
Answer: B
Explanation:
Comprehensive Detailed Explanation
A non-default device posture is applied in scenarios where specific checks on a device's compliance or security state (posture) are required to grant or deny access. The correct answer is:
* B. Checking whether a client has antivirus software as a condition for receiving access to resources.
* This use case explicitly requires device posture assessment, which involves evaluating the device for attributes like antivirus software, patch levels, or other compliance criteria.
* Non-default device posture rules are configured to assess these conditions and enforce the appropriate policy based on the device's state.
Other Options:
* A. Applying threat inspection: Threat inspection rules operate independently of device posture and apply based on traffic content, not device compliance.
* C. Redirecting compromised clients: This action is typically triggered based on a security event or threat detection, not directly related to device posture evaluation.
* D. Integrating with ClearPass OnGuard: While OnGuard can contribute to posture assessment, it does not require a non-default device posture in the SSE rule directly.
References
* HPE Aruba SSE Posture-Based Access Control documentation.
* Aruba ClearPass and SSE Integration Deployment Guide.
NEW QUESTION # 92
You are helping an organization deploy HPE Aruba Networking SSE. What is one reason to recommend that the company install agents on remote users' devices?
- A. To permit admins to manage the HPE Aruba Networking SSE policy rules.
- B. To run posture checks and apply different permissions based on those checks.
- C. To run threat inspection on clients in a local sandbox rather than in the cloud.
- D. To permit users to access private servers using SSH.
Answer: B
Explanation:
* Installing Agents for SSE (Secure Service Edge):
* Agents installed on remote users' devices allow posture checks (e.g., antivirus status, OS version) to ensure compliance.
* Based on the results of the posture checks, different permissions and security policies can be applied dynamically.
* This improves the security posture of remote users before granting access to resources.
* Option A: Correct. Agents enable posture checks and enforce conditional access based on compliance.
* Option B: Incorrect. Admins manage SSE policies centrally, not via agents.
* Option C: Incorrect. Access to private servers via SSH does not require agents; it relies on policies and tunnels.
* Option D: Incorrect. Local sandboxing is generally a function of endpoint protection solutions, not SSE agents.
NEW QUESTION # 93
A company has Aruba APs that are controlled by Central and that implement WIDS. When you check WIDS events, you see a "detect valid SSID misuse" event. What can you interpret from this event, and what steps should you take?
- A. Clients are failing to authenticate to corporate SSIDs. You should first check for misconfigured authentication settings and then investigate a possible threat.
- B. Admins have likely misconfigured SSID security settings on some of the company's APs. You should have them check those settings.
- C. This event might be a threat but is almost always a false positive. You should wait to see the event over several days before following up on it.
- D. Hackers are likely trying to pose as authorized APs. You should use the detecting radio information and immediately track down the device that triggered the event.
Answer: D
NEW QUESTION # 94
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