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HP Aruba Certified Network Security Professional Exam Sample Questions (Q76-Q81):

NEW QUESTION # 76
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. Use the trunk allowed VLAN setting to assign multiple VLAN IDs to the same role.
B. Change the VLAN IDs across the AOS-CX switches so that they are consistent.
C. Avoid configuring the VLAN in the role; use trunk VLANs to assign multiple VLANs to the port instead.
D. Assign consistent names to VLANs of the same type across the AOS-CX switches and have user-roles reference names.

Answer: D

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.

NEW QUESTION # 77
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. Traffic from 10.5.3.3 in an active HTTPS session between 10.2.2.2 and 10.5.3.3 is permitted.
B. HTTPS traffic from 10.2.2.2 to 10.5.5.5 is denied.
C. HTTPS traffic from 10.2.2.2 to 203.0.113.12 is denied.
D. Traffic from 198.51.100.12 in an active HTTP session between 10.2.2.2 and 198.51.100.12 is denied.

Answer: B

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 # 78
A company wants to use HPE Aruba Networking ClearPass Policy Manager (CPPM) to profile Linux devices. You have decided to schedule a subnet scan of the devices' subnets. Which additional step should you complete before scheduling the scan?

A. Enable the Data Port in the ClearPass server settings and connect that port to the network.
B. Configure SNMP in the network device settings for the switches that support the Linux devices.
C. Set up SSH accounts on CPPM and map them to the Linux devices' subnets.
D. Enable WMI probing in the cluster-wide parameters.

Answer: A

Explanation:
* Subnet Scan Requirements for Profiling:
* For ClearPass to scan and profile devices in a subnet, the Data Port must be enabled on the ClearPass server and connected to the network.
* This ensures that ClearPass can send and receive the required packets for device discovery and profiling.
* Option Analysis:
* Option A: Incorrect. SSH accounts are not required for subnet scanning.
* Option B: Incorrect. WMI probing is for Windows systems, not Linux devices.
* Option C: Correct. The Data Port is essential for subnet scans and must be properly configured and connected.
* Option D: Incorrect. SNMP is used for network device monitoring, not Linux device profiling.

NEW QUESTION # 79
What is one use case for implementing user-based tunneling (UBT) on AOS-CX switches?

A. Centralizing the distribution of wired traffic without requiring HPE Aruba Networking gateways
B. Applying enhanced security features such as deep packet inspection (DPI) to wired traffic
C. Adding 802.1X while continuing to use the existing VLAN and ACL structure in the Ethernet network
D. Tunneling traffic directly to a third-party firewall in a client data center

Answer: B

Explanation:
Implementing user-based tunneling (UBT) on AOS-CX switches is beneficial for applying enhanced security features such as deep packet inspection (DPI) to wired traffic. UBT allows the traffic from specific users or devices to be tunneled to a central controller or security appliance where advanced security policies, including DPI, can be applied. This approach ensures that even wired traffic benefits from the same level of security and inspection typically available for wireless traffic, thus enhancing overall network security.

NEW QUESTION # 80
Refer to Exhibit:

An HPE Aruba Networking 9x00 gateway is part of an HPE Aruba Networking Central group that has the settings shown in the exhibit. What would cause the gateway to drop traffic as part of its IDPS settings?

A. Its site-to-site VPN connections failing
B. Its IDPS engine failing
C. Traffic matching a rule in the active ruleset
D. Traffic showing anomalous behavior

Answer: C

Explanation:
1. IDPS Mode Configuration Overview
The exhibit shows the HPE Aruba Networking Central settings for the Gateway IDS/IPS configuration:
* Mode: Configured for Intrusion Prevention System (IPS), meaning that the gateway actively blocks traffic identified as threats.
* Fail Strategy: Configured to Block, meaning that if the gateway cannot determine the traffic's nature due to a system issue, it will block the traffic.
* Ruleset: The gateway uses a predefined set of intrusion detection/prevention rules (ruleset version
9861), which is updated automatically every day.
2. Traffic Evaluation in IPS Mode
In IPS mode, the gateway analyzes traffic against the active ruleset:
* If traffic matches a rule in the ruleset and is deemed malicious, the gateway will drop the traffic as part of its prevention mechanism.
* The ruleset defines specific conditions (e.g., signatures of known attacks, protocol anomalies) under which traffic should be blocked.
3. Explanation of Each Option
* A. Its site-to-site VPN connections failing:
* Incorrect:
* Site-to-site VPN connection issues do not directly trigger traffic drops under IDPS settings.
* IDPS is focused on detecting and preventing malicious activity, not general connectivity issues.
* B. Traffic matching a rule in the active ruleset:
* Correct:
* In IPS mode, the gateway drops traffic that matches any predefined rules in the active ruleset.
* For example, if traffic matches the signature of a known exploit or attack, it is immediately blocked.
* C. Its IDPS engine failing:
* Incorrect:
* The fail strategy determines how the gateway behaves in the event of an IDPS engine failure.
* In this case, the fail strategy is set to Block, but this applies only if the engine itself fails, not as a proactive traffic drop mechanism.
* D. Traffic showing anomalous behavior:
* Incorrect:
* While anomalous behavior may be logged or flagged, it does not necessarily lead to traffic drops unless it matches a specific rule in the active ruleset.
* Anomaly detection alone is not sufficient for IPS action without explicit rule matches.
Final Outcome:
Traffic is dropped only when it matches a rule in the active ruleset, ensuring targeted prevention of malicious activity.
References
* Aruba Gateway IDS/IPS Configuration Guide.
* Aruba Central Ruleset Management Documentation.
* Best Practices for Configuring Fail Strategies in IPS Mode.

NEW QUESTION # 81
......

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