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| Section | Objectives |
|---|---|
| Topic 1: Network Access Control | - Role-based access policies - Guest and device onboarding |
| Topic 2: Monitoring and Troubleshooting | - Security event monitoring - Network security diagnostics |
| Topic 3: Aruba Security Architecture | - Aruba ClearPass ecosystem overview - Policy enforcement and access control concepts |
| Topic 4: Identity and Access Management | - 802.1X authentication workflows - AAA concepts (Authentication, Authorization, Accounting) |
| Topic 5: Secure Connectivity | - VPN concepts and secure tunneling - Secure remote access design |
| Topic 6: Network Security Fundamentals |
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NEW QUESTION # 69
A company has AOS-CX switches, which authenticate clients to HPE Aruba Networking ClearPass Policy Manager (CPPM). CPPM is set up to receive a variety of information about clients' profile and posture. New information can mean that CPPM should change a client's enforcement profile. What should you set up on the switches to help the solution function correctly?
Answer: C
Explanation:
* Dynamic Authorization for Enforcement Profile Updates:
* When CPPM receives updated client posture or profile data, it can initiate a Change of Authorization (CoA) to update enforcement profiles dynamically.
* To support this:
* Dynamic Authorization must be enabled on the switches.
* CPPM must be configured as a dynamic authorization client to send CoA requests.
* Option C: Correct. Dynamic authorization ensures that the switch can apply updated enforcement profiles based on new information from CPPM.
* Option A: Incorrect. RADIUS accounting provides session updates but does not enable dynamic changes to enforcement profiles.
* Option B: Incorrect. RADIUS track is for monitoring RADIUS server availability, not dynamic enforcement updates.
* Option D: Incorrect. TACACS is not used for dynamic authorization; RADIUS handles this functionality.
NEW QUESTION # 70
Refer to the exhibit.
The exhibit shows a saved packet capture, which you have opened in Wireshark. You want to focus on the complete conversation between 10.1.70.90 and 10.1.79.11 that uses source port 5448.
What is a simple way to do this in Wireshark?
Answer: C
Explanation:
* Wireshark: Follow TCP Stream:
* Wireshark provides an intuitive feature to filter and display a complete TCP conversation.
* By right-clicking any packet within the conversation and selecting "Follow # TCP Stream", Wireshark isolates and displays the entire conversation.
* This feature allows you to view the communication in a simplified, sequential manner, including requests and responses.
* Option Analysis:
* Option A: Incorrect. Capture filters only apply during packet capturing, not for analyzing already saved packet captures.
* Option B: Incorrect. Sorting packets helps with organizing data but does not isolate a complete conversation.
* Option C: Incorrect. A capture filter for TCP port 5448 would have to be applied before capturing; it does not work for saved data.
* Option D: Correct. Right-clicking a packet and choosing "Follow TCP Stream" is the simplest way to display the full conversation between 10.1.70.90 and 10.1.79.11 on port 5448.
Steps in Wireshark to Follow a TCP Stream:
* Locate any packet within the desired conversation (e.g., between 10.1.70.90 and 10.1.79.11 on TCP port 5448).
* Right-click on the packet.
* Choose "Follow" # "TCP Stream".
* Wireshark will display the entire TCP conversation, including both directions of communication.
This feature is especially useful when troubleshooting or analyzing detailed interactions between hosts.
NEW QUESTION # 71
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?
Answer: D
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 # 72
A company has AOS-CX switches and HPE Aruba Networking ClearPass Policy Manager (CPPM). The company wants switches to implement 802.1X authentication to CPPM and download user roles. What is one task that you must complete on CPPM to support this use case?
Answer: D
Explanation:
* 802.1X and User Role Download:
* AOS-CX switches use RADIUS attributes to dynamically download user roles from CPPM.
* The HPE-User-Role VSA (Vendor-Specific Attribute) must be configured in the RADIUS enforcement profiles to specify which role the switch should apply.
* Option Analysis:
* Option A: Incorrect. Exporting roles in XML is not needed for dynamic role download.
* Option B: Incorrect. Switches authenticate via RADIUS, not admin accounts with specific privileges.
* Option C: Correct. RADIUS enforcement profiles must include the HPE-User-Role VSA to implement user role download.
* Option D: Incorrect. TPM certificates are unrelated to RADIUS-based user role downloads.
NEW QUESTION # 73
An AOS-CX switch has been configured to implement UBT to two HPE Aruba Networking gateways that implement VRRP on the users' VLAN. What correctly describes how the switch tunnels UBT users' traffic to those gateways?
Answer: D
NEW QUESTION # 74
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