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| Section | Objectives |
|---|---|
| Network Access Control | - Role-based access policies - Guest and device onboarding |
| Aruba Security Architecture | - Policy enforcement and access control concepts - Aruba ClearPass ecosystem overview |
| Secure Connectivity | - VPN concepts and secure tunneling - Secure remote access design |
| Identity and Access Management | - AAA concepts (Authentication, Authorization, Accounting) - 802.1X authentication workflows |
| Network Security Fundamentals | |
| Monitoring and Troubleshooting | - Network security diagnostics - Security event monitoring |
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NEW QUESTION # 128
A company has HPE Aruba Networking APs managed by HPE Aruba Networking Central. You have set up a WLAN to enforce WPA3 with 802.1X authentication.
What happens if the client fails authentication?
Answer: A
Explanation:
When WPA3 with 802.1X authentication is enforced on an HPE Aruba Networking WLAN, the authentication process strictly adheres to security standards. Here's how the process works:
1. 802.1X Authentication Workflow in WPA3
The client must provide valid credentials (such as certificates or username/password) to authenticate with the RADIUS server via 802.1X.
If the client fails authentication (e.g., due to invalid credentials or lack of proper configuration), the 802.1X handshake fails, and the AP terminates the connection.
2. Role Assignment in WLANs
Default Role: The role assigned to authenticated clients after a successful 802.1X authentication. It is not applied to unauthenticated clients.
Critical Role: This is a fallback role applied when there are issues communicating with the RADIUS server, not when authentication fails.
Initial Role: A temporary role assigned to clients before authentication completes. However, this role is removed once the authentication process determines failure.
3. Behavior Upon Authentication Failure
In the case of an authentication failure, the client does not get assigned to any role (default, critical, or initial) because it does not meet the conditions for network access.
The client is dropped immediately, and no further communication is allowed until reauthentication is attempted.
Explanation of Each Option
A). The AP assigns the client to the WLAN ' s default role:
Incorrect: The default role applies only after successful authentication, not in case of authentication failure.
B). The AP drops the client because authentication aborts:
Correct: If the client fails authentication, the AP terminates the connection without assigning any roles.
C). The AP assigns the client to the WLAN ' s critical role:
Incorrect: The critical role is used when the AP cannot reach the RADIUS server, not when authentication fails.
D). The AP assigns the client to the WLAN ' s initial role:
Incorrect: The initial role is applied during the authentication process, but it is not retained after a failed authentication.
References
Aruba Central WLAN Configuration Guide.
WPA3 and 802.1X Authentication Best Practices in Aruba Networks.
Aruba AP Role Assignment Workflow Documentation.
NEW QUESTION # 129
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?
Answer: B
NEW QUESTION # 130
Refer to Exhibit. A company is using HPE Aruba Networking ClearPass Device Insight (CPDI) (the standalone application). In the CPDI interface, you go to the Generic Devices page and see the view shown in the exhibit.
What correctly describes what you see?
Answer: C
Explanation:
In HPE Aruba Networking ClearPass Device Insight (CPDI), the clusters shown in the exhibit represent groups of unclassified devices that CPDI's machine learning algorithms have identified as having similar attributes. These clusters are formed based on observed characteristics and behaviors of the devices, helping administrators to categorize and manage devices more effectively.
1. Machine Learning: CPDI uses machine learning to analyze device attributes and group them into clusters based on similarities.
2. Unclassified Devices: These clusters typically represent devices that have not yet been explicitly classified by admins but share common attributes that suggest they belong to the same category.
3. Management: This clustering helps in simplifying the process of managing and applying policies to groups of similar devices.
NEW QUESTION # 131
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?
Answer: C
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 # 132
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: A
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 # 133
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