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HP Aruba Certified Network Security Professional Exam Sample Questions (Q14-Q19):

NEW QUESTION # 14
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 203.0.113.12 is denied.
B. Traffic from 198.51.100.12 in an active HTTP session between 10.2.2.2 and 198.51.100.12 is denied.
C. HTTPS traffic from 10.2.2.2 to 10.5.5.5 is denied.
D. Traffic from 10.5.3.3 in an active HTTPS session between 10.2.2.2 and 10.5.3.3 is permitted.

Answer: C

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.

NEW QUESTION # 15
You have configured an AOS-CX switch to implement 802.1X on edge ports. Assume ports operate in the default auth-mode. VoIP phones are assigned to the "voice" role and need to send traffic that is tagged for VLAN 12. Where should you configure VLAN 12?

A. As the allowed trunk VLAN in the "voice" role (and not in the edge port settings).
B. As a trunk allowed VLAN on edge ports and the trunk native VLAN in the "voice" role.
C. As the trunk native VLAN on edge ports and the trunk native VLAN on the "voice" role.
D. As the trunk native VLAN in the "voice" role (and not in the edge port settings).

Answer: A

Explanation:
* Voice Role VLAN Configuration:
* When VoIP phones are authenticated and assigned to the "voice" role, VLAN 12 should be explicitly defined as an allowed trunk VLAN within the role configuration.
* The VLAN configuration should be role-specific rather than on the edge port, as this ensures dynamic VLAN assignment based on authentication results.
* Option Analysis:
* Option A: Incorrect. Native VLANs are for untagged traffic, but VoIP traffic is tagged.
* Option B: Correct. VLAN 12 must be configured as the allowed trunk VLAN in the "voice" role to tag VoIP traffic correctly.
* Option C: Incorrect. Configuring VLAN 12 in both edge port and role settings is redundant and unnecessary.
* Option D: Incorrect. Native VLANs do not handle tagged traffic like VLAN 12 for VoIP phones.

NEW QUESTION # 16
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 run posture checks and apply different permissions based on those checks.
B. To permit users to access private servers using SSH.
C. To run threat inspection on clients in a local sandbox rather than in the cloud.
D. To permit admins to manage the HPE Aruba Networking SSE policy rules.

Answer: A

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 # 17
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.

Answer: D

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.

NEW QUESTION # 18
Refer to the exhibit.

You have verified that AOS-CX Switch-1 has constructed an IP-to-MAC binding table in VLANs 10-19.
Now you need to enable ARP inspection for the endpoint connected to Switch-1. What must you do first to prevent traffic disruption?

A. Configure DHCP snooping on VLANs 10-19 on Switch-2.
B. Configure ARP inspection on VLANs 10-19 on Switch-2.
C. Configure Switch-1 uplinks as trusted ARP inspection ports.
D. Create a static IP-to-MAC binding on Switch-1 for the DHCP server.

Answer: C

Explanation:
Dynamic ARP Inspection (DAI):
* ARP inspection verifies ARP packets against a trusted IP-to-MAC binding table to prevent ARP spoofing attacks.
* DHCP snooping is required to construct the IP-to-MAC binding table dynamically.
* To avoid traffic disruption, uplink ports that connect to trusted switches, DHCP servers, or routers must be explicitly configured as trusted ports for ARP inspection.
Steps to Prevent Traffic Disruption:
* Trust the Uplinks: ARP inspection must treat uplink ports as trusted to allow ARP traffic from legitimate DHCP servers and upstream switches.
* Enable DHCP Snooping: DHCP snooping must be enabled on Switch-2 to ensure consistent IP-to- MAC bindings upstream.
Why the Answer is Correct:
* Option A: Incorrect. ARP inspection on Switch-2 is important but not required first to prevent disruption on Switch-1.
* Option B: Incorrect. DHCP snooping must be enabled upstream eventually, but this alone will not stop immediate traffic disruption on Switch-1.
* Option C: Correct. Switch-1 uplinks must be trusted ARP inspection ports first to allow legitimate upstream traffic and prevent ARP disruption.
* Option D: Incorrect. Static bindings are not required if DHCP snooping is enabled, and they are manual, limiting scalability.
Conclusion:
To avoid traffic disruption, configure Switch-1 uplinks as trusted ARP inspection ports to ensure valid ARP traffic can pass upstream and downstream.

NEW QUESTION # 19
......

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