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| Section | Objectives |
|---|---|
| Network Security Fundamentals | |
| Secure Connectivity | - Secure remote access design - VPN concepts and secure tunneling |
| Aruba Security Architecture | - Policy enforcement and access control concepts - Aruba ClearPass ecosystem overview |
| Identity and Access Management | - 802.1X authentication workflows - AAA concepts (Authentication, Authorization, Accounting) |
| Monitoring and Troubleshooting | - Security event monitoring - Network security diagnostics |
| Network Access Control | - Guest and device onboarding - Role-based access policies |
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NEW QUESTION # 78
Refer to Exhibit:
All of the switches in the exhibit are AOS-CX switches.
What is the preferred configuration on Switch-2 for preventing rogue OSPF routers in this network?
Answer: A
Explanation:
Why MD5 Authentication on Lag 1 is Preferred:
Lag 1 is the primary link between Switch-2 and Switch-1, both of which are Layer 3 switches running OSPF.
By enabling MD5 authentication, OSPF routers exchange authenticated packets, preventing unauthorized or rogue OSPF routers from forming adjacencies or injecting routes.
MD5 is a secure authentication method and ensures the integrity and authenticity of OSPF communications.
Other Options Analysis:
A). Configure OSPF authentication on VLANs 10-19 in password mode: While configuring authentication on VLAN interfaces could secure VLAN-specific OSPF traffic, it is less effective because the main threat of rogue OSPF comes from unauthorized L3 devices connected via the backbone (Lag 1).
C). Disable OSPF entirely on VLANs 10-19: Disabling OSPF on these VLANs is not a preferred solution because OSPF is needed to route traffic in this design.
D). Configure passive-interface as the OSPF default and disable OSPF passive on Lag 1: While passive interfaces prevent OSPF from forming adjacencies, it does not directly prevent rogue routers. Passive mode only limits OSPF advertisements on specific interfaces.
NEW QUESTION # 79
You manage AOS-10 APs with HPE Aruba Networking Central. A role is configured on these APs with these rules (in order):
* Allow UDP on port 67 to any destination
* Allow any to network 10.1.4.0/23
* Deny any to network 10.1.0.0/18 + log
* Deny any to network 10.0.0.0/8
* Allow any to any destination
You add this new rule immediately before rule 4:
* Deny SSH to network 10.1.0.0/21 + denylist
After this change, what happens when a client assigned to this role sends SSH traffic to 10.1.7.12?
Answer: A
Explanation:
Aruba firewall / role access rules are evaluated top-down, first-match wins; once a rule matches, no later rules are processed.
Let's walk the packet through the ordered rules:
* The traffic is SSH, not UDP/67 # rule 1 does not match.
* Destination 10.1.7.12 is not in 10.1.4.0/23 # rule 2 does not match.
* 10.1.7.12 is in 10.1.0.0/18 # rule 3 matches first.
* Rule 3 action: Deny any to 10.1.0.0/18 + log.
* Because rule 3 already matched, the later "Deny SSH to 10.1.0.0/21 + denylist" rule is never evaluated, so no denylist is applied.
Aruba documentation for session ACLs and firewall rules explicitly states that rules are evaluated from top to bottom and "the first match terminates further evaluation," and logging/denylist flags on a rule are applied only when that specific rule matches.
So the outcome is: the SSH traffic is dropped and logged, but the client is not denylisted # Option B.
NEW QUESTION # 80
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?
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 # 81 
The exhibit shows the 802.1X-related settings for Windows domain clients. What should admins change to make the settings follow best security practices?
Answer: D
Explanation:
To follow best security practices for 802.1X authentication settings in Windows domain clients:
* Specify at least two server names under "Connect to these servers":
* Admins should explicitly list trusted RADIUS server names (e.g., radius.example.com) to prevent the client from connecting to unauthorized or rogue servers.
* This mitigates man-in-the-middle (MITM) attacks where an attacker attempts to present their own RADIUS server.
* Select the desired Trusted Root Certificate Authority and "Don't prompt users":
* Select the Trusted Root CA that issued the RADIUS server's certificate. This ensures clients validate the correct server certificate during the EAP-TLS/PEAP authentication process.
* Enabling "Don't prompt users" ensures end users are not confused or tricked into accepting certificates from untrusted servers.
* Why the other options are incorrect:
* Option C: Incorrect. Wildcards in server names (e.g., *.example.com) weaken security and allow broader matching, increasing the risk of rogue servers.
* Option D: Incorrect. Clearing "Use simple certificate selection" requires users to select certificates manually, which can lead to errors and usability issues. Simple certificate selection is recommended when properly configured.
Recommended Settings for Best Security Practices:
* Server Validation: Specify the exact RADIUS server names in the "Connect to these servers" field.
* Root CA Validation: Ensure only the correct Trusted Root Certificate Authority is selected.
* User Prompts: Enable "Don't prompt users" to enforce automatic and secure authentication without user intervention.
NEW QUESTION # 82 
You have downloaded a packet capture that you generated on HPE Aruba Networking Central. When you open the capture in Wireshark, you see the output shown in the exhibit.
What should you do in Wireshark so that you can better interpret the packets?
Answer: A
Explanation:
To better interpret the packets shown in the Wireshark capture, you should choose to decode UDP port 5555 packets as ARUBA_ERM and set the Aruba ERM Type to 0. This configuration will allow Wireshark to properly decode and display the Aruba-specific encapsulated remote mirroring (ERM) packets, providing a clearer understanding of the traffic.
1.Decoding Protocols: Selecting the correct protocol decoding in Wireshark ensures that the captured packets are interpreted correctly, displaying the relevant information.
2.Aruba ERM: The packets in the capture are likely encapsulated remote mirroring (ERM) packets specific to Aruba, which require proper decoding settings in Wireshark.
3.Clear Interpretation: By setting the Aruba ERM Type to 0 and decoding the packets as ARUBA_ERM, you can view the encapsulated data accurately.
NEW QUESTION # 83
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