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HP Aruba Certified Network Security Professional Exam Sample Questions (Q125-Q130):

NEW QUESTION # 125
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?

Answer: A

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 # 126
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?

Answer: A

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.


NEW QUESTION # 127
Assume that an AOS-CX switch is already implementing DHCP snooping and ARP inspection successfully on several VLANs.
What should you do to help minimize disruption time if the switch reboots?

Answer: A

Explanation:
To minimize disruption time if an AOS-CX switch reboots while implementing DHCP snooping and ARP inspection, you should save the IP-to-MAC bindings to external storage. This ensures that the DHCP snooping and ARP inspection tables, which are crucial for preventing spoofing attacks, are preserved across reboots. When the switch restarts, it can reload these bindings from the external storage, thereby maintaining network security and reducing the downtime associated with rebuilding these tables.
1.Preserving Bindings: Saving IP-to-MAC bindings to external storage ensures that these critical security tables are not lost during a reboot, maintaining network integrity.
2.Security Continuity: This practice helps to quickly restore security features like DHCP snooping and ARP inspection, minimizing the window of vulnerability.
3.Operational Efficiency: By preserving these bindings, the switch can resume normal operations faster, reducing disruption to network services.
Reference: Aruba's AOS-CX configuration guides and best practices for DHCP snooping and ARP inspection detail the importance of saving IP-to-MAC bindings for maintaining network security across reboots.


NEW QUESTION # 128
What is one use case that companies can fulfill using HPE Aruba Networking ClearPass Policy Manager's (CPPM's) Device Profiler?

Answer: A

Explanation:
ClearPass Device Profiler gathers information (DHCP, HTTP user-agent, MAC OUI, RADIUS, etc.) to identify device types and roles-especially non-user devices. Aruba documentation describes using profiling to recognize and categorize devices such as IP cameras, printers, and IoT "bots", and to supply this identity context to access control policies. ExamTopics Typical use cases include:
* Automatically identifying a device as a security camera, printer, IP phone, etc.
* Using that profile to assign an appropriate role/VLAN and enforcement profile in CPPM (e.g., restricted video-surveillance VLAN).
ClearPass literature explicitly calls out that Device Profiler is used to "automatically profile devices and provide an identity context (such as cameras, printers, or bots)" that can be used in policy decisions.
Options B, C, and D are handled by vulnerability scanners, directory services, or posture/OnGuard, not by Device Profiler itself. Therefore the correct use case is Option A.


NEW QUESTION # 129
You need to create a certificate signing request (CSR) for HPE Aruba Networking ClearPass's RADIUS/EAP certificate.
What is one guideline you should follow?

Answer: C

Explanation:
For a ClearPass RADIUS/EAP server certificate, the certificate identity should clearly represent the ClearPass server or service name that supplicants validate during 802.1X authentication. A fully qualified domain name in the subject common name, without a wildcard, is the safest guideline because it provides a specific and predictable server identity. Wildcard identities are not preferred for EAP server identity validation because they weaken specificity and can create trust ambiguity. A private CA is acceptable in enterprise 802.1X if clients trust its root certificate. RSA versus EC is a compatibility and policy decision, not simply a way to obtain shorter keys. A SAN may include DNS names, but requiring an IP address is not the best general guideline.


NEW QUESTION # 130
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