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| Section | Objectives |
|---|---|
| Topic 1: Aruba Security Architecture | - Policy enforcement and access control concepts - Aruba ClearPass ecosystem overview |
| Topic 2: Secure Connectivity | - Secure remote access design - VPN concepts and secure tunneling |
| Topic 3: Identity and Access Management | - AAA concepts (Authentication, Authorization, Accounting) - 802.1X authentication workflows |
| Topic 4: Network Access Control | - Role-based access policies - Guest and device onboarding |
| Topic 5: Network Security Fundamentals | |
| Topic 6: Monitoring and Troubleshooting | - Network security diagnostics - Security event monitoring |
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NEW QUESTION # 51
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
NEW QUESTION # 52
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: C
NEW QUESTION # 53
You manage AOS-10 APs with HPE Aruba Networking Central. A role is configured on these APs with the following rules:
* Allow UDP on port 67 to any destination
* Allow any to network 10.1.6.0/23
* Deny any to network 10.1.0.0/16 + log
* Deny any to network 10.0.0.0/8
* Allow any to any destination
You add this new rule immediately before rule 2:
Deny SSH to network 10.1.4.0/23 + denylist
What happens when a client assigned to this role sends SSH traffic to 10.1.11.42?
Answer: B
Explanation:
Comprehensive Detailed Explanation
* Traffic Match Evaluation Order:
* The rules are processed in sequential order, and the first rule that matches is applied.
* The added rule only denies SSH traffic to 10.1.4.0/23. Since 10.1.11.42 is not within the 10.1.4.0
/23 subnet, this rule does not apply.
* Next Matching Rule:
* Rule 2 permits traffic to the 10.1.6.0/23 network, but this does not include 10.1.11.42.
* Rule 3 denies traffic to the broader 10.1.0.0/16 network and logs it. Since 10.1.11.42 falls under this range, this rule applies, and the traffic would be logged and dropped.
* Logging and Denylist Actions:
* The denylist action in the new rule only applies to SSH traffic to 10.1.4.0/23. Since the destination is outside that range, the denylist is not triggered.
References
* Aruba AOS-10 Role and Firewall Rules Documentation.
* HPE Aruba Central Configuration Best Practices Guide.
NEW QUESTION # 54
You have configured an AOS-CX switch to implement 802.1X on edge ports. Assume ports operate in the default auth-mode. VolP phones are assigned to the
"voice" role and need to send traffic that is tagged for VLAN 12.
Where should you configure VLAN 12?
Answer: A
Explanation:
When configuring 802.1X authentication on edge ports of an AOS-CX switch and assigning VoIP phones to a
"voice" role, the correct approach is to configure VLAN 12 as the allowed trunk VLAN in the "voice" role.
This setup ensures that traffic tagged for VLAN 12 is appropriately managed by the role applied to the VoIP phones. In AOS-CX switches, the role-based VLAN configuration allows for more granular control and ensures that the VoIP phones' traffic is handled correctly without altering the edge port settings, which typically operate with default settings for authentication.
Reference: Detailed configuration and role assignment practices for AOS-CX switches can be found in Aruba's configuration guides and documentation related to AOS-CX switch deployments.
NEW QUESTION # 55
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?
Answer: B
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 # 56
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