HPE6-A90 PrüfungGuide, HP HPE6-A90 Zertifikat - HPE Networking Central Exam

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HP HPE6-A90 Exam Syllabus Topics:

SectionObjectives
Network Deployment and Configuration- Wired infrastructure configuration
  • 1. VLAN and interface configuration
    • 2. Switch dashboard and faceplate views
      - Initial deployment workflows
      • 1. Device onboarding to Aruba Central
        • 2. Configuration templates
          Network Management with HPE Aruba Networking Central- Platform overview and architecture
          • 1. HPE Aruba Networking Central capabilities
            • 2. Cloud-managed network operations
              - Wired network management
              • 1. Interface and port management views
                • 2. Switch monitoring and visualization
                  Network Operations and Monitoring- API and automation concepts
                  • 1. API awareness (read-only vs operational)
                    • 2. Developer Hub usage
                      - Device health and telemetry
                      • 1. Performance monitoring
                        • 2. Alerting and troubleshooting

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                          HPE Networking Central Exam HPE6-A90 Prüfungsfragen mit Lösungen (Q50-Q55):

                          50. Frage
                          What is a key advantage of using configuration groups?

                          Antwort: C

                          Begründung:
                          Configuration Groups enable centralized management and policy consistency across multiple devices, significantly reducing manual effort.


                          51. Frage
                          What is the main benefit of Aruba Central's cloud-native architecture?

                          Antwort: B

                          Begründung:
                          The cloud-native design enables administrators to manage, monitor, and troubleshoot networks from a centralized platform accessible from virtually any location.


                          52. Frage
                          A user's role should restrict access to internal resources but allow internet access. Which policy configuration enforces this?

                          Antwort: A

                          Begründung:
                          Technical explanation
                          A role refers to one or more policies composed of ordered match/action rules. Place an explicit deny for protected internal subnets before an otherwise permissive internet-access entry, while permitting infrastructure services needed for DHCP, DNS and captive portal as appropriate. A final default allow can be valid only when the earlier internal-deny rules reliably match the protected networks. Validate the applied role, destination address objects and rule counters; the rule set is ineffective if bound to the wrong SSID or enforcement point. For example, a policy can deny guest access to 10.0.0.0/8 and 172.16.0.0/12 before a general internet permit. It must still allow the required DNS and DHCP services for a usable guest session.
                          With first-match rules, adding a deny after an earlier broad permit can make it ineffective. Setting the entire default policy to allow-all without an early internal-networks deny violates the restriction. Match specific protected prefixes first, then permit the required public destinations.
                          Official HPE references | Configuring VLAN Settings for WLAN SSID in Tunnel and Mixed Mode * AOS-10 Cloud Services | Study-guide topic: Introduction to AOS-10


                          53. Frage
                          What is the distinction between L3 routed and L3 NATed SSIDs?

                          Antwort: A

                          Begründung:
                          Technical explanation
                          In a Layer 3 routed Microbranch design, client source addresses remain visible end-to-end and the enterprise must advertise or otherwise route the local client subnet toward return traffic. In an L3 NATed design, the AP translates outbound sessions to a tunnel or uplink address, reducing the need to distribute a route for every branch WLAN subnet. NAT simplifies routing but can limit source-IP visibility and inbound connection behavior. Choose the mode based on enterprise identity, application reachability and route-scale requirements rather than treating both modes as equivalent forwarding. In a routed Microbranch subnet, the VPN concentrator or upstream network needs a return route toward the branch client pool. With NAT, outside services instead see the AP translated address, reducing route advertisement needs but obscuring individual client addressing.
                          Option A reverses source translation and route-advertisement behavior. Option C concerns gateway-client balancing, not Microbranch routing modes, and D incorrectly assumes corporate DHCP/L2 simulation is intrinsic to both L3 modes. The deciding factor is whether upstream networks see the client subnet or an AP- translated address.
                          Official HPE references | Layer 3 Microbranch - Validated Solution Guide * Configuring VLANs - Microbranch | Study-guide topic: Introduction to AOS-10


                          54. Frage
                          In AOS10, how does HPE Aruba Networking Central key management help wireless clients roam between APs?

                          Antwort: C

                          Begründung:
                          Technical explanation
                          Central's Key Management Service distributes an authenticated station record to neighboring APs. For supported fast-roaming methods, this can include the Pairwise Master Key or derived 802.11r keys, alongside the client's VLAN, role and authentication state. AirMatch supplies RF-neighbor information used to target synchronization. The destination AP can therefore complete a shortened key exchange without repeating the entire initial 802.1X transaction. The mechanism depends on supported clients and configured roaming behavior; it does not mean that all station keys are indiscriminately replicated throughout the entire enterprise.
                          The initial 802.1X authentication establishes a cached key context; KMS distributes PMK or 802.11r-derived material plus VLAN/role information to neighbors selected using AirMatch adjacency. Clients still perform a four-way exchange during the roam.
                          Forcing full 802.1X authentication on every roam increases latency, and keys stored only on the old AP provide no fast key material at the new radio. KMS shares cached keying and station context with neighbors, though clients still complete the applicable handshake. The WLAN Security settings control 802.11r and related fast-roaming features; KMS supplies the station record and key material to eligible neighboring APs.
                          Official HPE references | Roaming and the Key Management Service * AirMatch | Study-guide topic:
                          Introduction to AOS-10


                          55. Frage
                          ......

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