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| Section | Weight | Objectives |
|---|---|---|
| Protect and Defend | 58% | - Zero Trust Security
|
| Analyze | 38% | - Device and Network Visibility
|
| Forensics | 4% | - Security Incident Investigation
|
>> HPE7-A10 Originale Fragen <<
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14. Frage
A customer requires you to configure Aruba ClearPass Policy Manager (CPPM) to authenticate domain users on domain computers. Domain users, domain computers, and domain controllers obtain certificates from a Windows CA. CPPM must validate these certificates and confirm that the users and computers have accounts in Windows AD. The customer requires encrypted communication for all traffic between CPPM and the domain controllers.
You have imported the Windows CA root certificate into the ClearPass CA Trust list.
Based on these requirements, which usages should be added to it?
Antwort: D
15. Frage
A client connected to an AOS-CX switch has been assigned Role1. Role1 has the following port-access classes and policy associated with it:
```text
class ip class1
10 match tcp any any eq 22
20 ignore tcp any 10.10.4.0/23 eq 443
30 match ip any 10.10.4.0/23
class ip class2
10 match any any eq 67
20 match ip any 10.10.4.0/22
port-access policy policy1
10 class ip class1 action drop
20 class ip class2
```
The client sends two packets:
1: HTTPS to 10.10.5.5
2: DNS to 10.10.6.6
What occurs?
Antwort: D
Begründung:
AOS-CX port-access policies evaluate classifier rules sequentially based on sequence numbers.
Evaluating Packet 1 (HTTPS to 10.10.5.5 on TCP 443):
The packet enters `policy1` at sequence 10 (`class ip class1`). Within `class1`:
* Sequence 10 matches TCP port 22, failing on port.
* Sequence 20 is an `ignore` statement: `ignore tcp any 10.10.4.0/23 eq 443`. The subnet 10.10.4.0/23 spans
10.10.4.0 through 10.10.5.255, so 10.10.5.5 falls within this range. The `ignore` keyword excludes matching traffic from being matched by the class, causing evaluation to bypass sequence 30 and exit `class1` entirely.
* Evaluation proceeds to sequence 20 (`class ip class2`). Neither entry in `class2` matches (port 67 does not match; destination 10.10.5.5 on port 443 matches sequence 20's 10.10.4.0/22 range, covering 10.10.4.0-
10.10.7.255). In AOS-CX port-access policies, an entry without an explicit action defaults to `permit`.
Therefore, Packet 1 is permitted.
Evaluating Packet 2 (DNS to 10.10.6.6 on UDP 53):
* Enters `class1`: Sequence 10 (TCP 22) does not match; Sequence 20 does not match; Sequence 30 targets
10.10.4.0/23 (10.10.4.0-10.10.5.255), so 10.10.6.6 does not match. `class1` does not hit.
* Enters `class2`: Sequence 10 does not match (port 67); Sequence 20 matches `ip any 10.10.4.0/22`. Because
10.10.6.6 is inside 10.10.4.0/22 and `class2` has no explicit drop action, it inherits default `permit`.
Both packets are permitted.
References: AOS-CX Port Access Guide - Classifier Policies, Classes, and Ignore Actions.
16. Frage
A customer is migrating from on-premises AD to Microsoft Entra ID (Azure AD) as its only domain solution.
The customer also manages wired and wireless devices with Microsoft Endpoint Manager (Intune).
The customer wants to strengthen network-edge security. You are assisting with the design of an HPE Aruba Networking ClearPass deployment for this purpose. HPE Aruba Networking devices will authenticate wireless and wired clients to a ClearPass Policy Manager (CPPM) cluster that uses version 6.10.
The customer has several authentication requirements. Clients should pass EAP-TLS authentication only when a query to Microsoft Entra ID (Azure AD) confirms that they have accounts in Microsoft Entra ID (Azure AD). To further refine client privileges, ClearPass must also use information gathered by Intune to make access-control decisions.
Extension Configuration:
graphEndpoint: graph.microsoft.com
syncPageSize: 50
enableSyncAll: true
syncAllSchedule: "*/60 * * * *"
syncUpdatedOnly: false
syncAllOnStart: true
enableEndpointCache: true
endpointCacheTimeSeconds: 3600
enableUserGroups: false
Refer to the scenario.
The Intune extension is configured as shown in this exhibit.
The customer wants to reduce the overhead of polling information from Intune to CPPM, but requires client information to be current at least once per hour. What should you recommend?
Antwort: C
Begründung:
The ClearPass Microsoft Intune Extension synchronizes device posture, compliance status, and hardware attributes from Microsoft Graph API into ClearPass Policy Manager's local database.
In the exhibited configuration, `syncUpdatedOnly` is set to `false`, and `syncAllSchedule` is set to poll every
60 minutes (`*/60 * * * *`). With `syncUpdatedOnly` disabled, the extension executes a full synchronization on every hourly interval, pulling the entire inventory of Intune endpoints. This generates significant network overhead, consumes excessive Graph API throttling limits, and creates unnecessary database write cycles on ClearPass.
Changing `syncUpdatedOnly` to `true` activates delta querying via the Microsoft Graph delta API. Under this setting, the extension queries and downloads only endpoint records that have changed, updated, or enrolled since the previous synchronization run. Because the synchronization schedule remains configured for once every hour, the data remains fully refreshed at least hourly while drastically reducing API calls, processing latency, and server overhead.
References: ClearPass Policy Manager 6.10 - Microsoft Intune Extension Configuration Guide.
17. Frage
An organization wants an AOS-CX switch to generate an alert when its RADIUS server (cp.acnsxtest.local) rejects an abnormal number of client authentication requests each hour. After discussing this with other HPE Aruba Networking administrators, you still do not know how many rejections should be considered normal or abnormal. You expect this value may vary for every switch.
You are assisting the developer with developing an NAE script for this use case.
Refer to the scenario.
You are helping a customer define an NAE script for AOS-CX switches. The script will monitor statistics from a RADIUS server configured on the switch. To future-proof the script, you want administrators to be able to choose a different hostname or IP address for the monitored RADIUS server when they create an agent from the script.
What should you recommend?
Antwort: C
Begründung:
The Aruba Network Analytics Engine (NAE) framework allows network engineers to build programmatic monitoring, troubleshooting, and alerting agents using Python-based scripts that interface directly with the AOS-CX REST database.
To make an NAE script reusable across diverse switches without modifying Python code, developers define configurable inputs using the `ParameterDefinitions` dictionary. By defining a script parameter (e.g.,
`radius_server`), administrators creating an agent via the WebUI or CLI can specify the desired RADIUS server IP or FQDN.
In the script's monitor definition, this parameter is referenced dynamically in the REST URI (e.g., `/rest/v10.04
/system/radius_servers/{}...`.format(self.params['radius_server'])). This parameterization allows administrators to instantiate multiple agents from a single static script while monitoring distinct servers per switch. Hardcoded variables, making scripts manually editable, or attempting to gather data via callbacks fail to leverage the NAE agent initialization model.
References: AOS-CX Network Analytics Engine (NAE) Guide - Script Parameterization and Resource Monitoring URIs.
18. Frage
When should BPDU protection be implemented on an AOS-CX switch port rather than BPDU filtering?
Antwort: B
Begründung:
In Layer 2 network security design on AOS-CX switches, BPDU Protection (`bpdu-protection`) is the fundamental standard for access/edge ports configured with `spanning-tree port-type admin-edge`. Edge ports connect directly to end-user devices (workstations, printers, IP phones) that should never participate in the Spanning Tree Protocol (STP) topology. If an unauthorized switch, rogue access point, or malicious user connects to an edge port and transmits STP BPDUs, BPDU Protection immediately disables the interface (placing it in an error-disabled/down state), preventing STP topology recalculations or root bridge hijacking.
Conversely, BPDU Filtering (`spanning-tree bpdu-filter`) suppresses the transmission and processing of BPDUs entirely on the enabled port, effectively isolating the interface from Spanning Tree while keeping it in a forwarding state. Using BPDU filtering on untrusted edge ports is dangerous because it creates catastrophic Layer 2 bridging loops if a rogue switch or looped cable is introduced. BPDU filtering is strictly reserved for specialized inter-switch service provider boundaries or non-spanning tree test environments.
References: AOS-CX Layer 2 Bridging Guide - Spanning Tree Security Mechanisms (BPDU Guard
/Protection vs BPDU Filter).
19. Frage
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