Pass the HP HPE Networking HPE6-A90 Questions and answers with CertsForce

Technical explanation

Central brings network-device inventory, site topology, client experience, application visibility, firmware compliance and configuration profiles into a common operational context. Administrators can traverse from a site-level alarm to a specific access switch, AP or gateway and then launch troubleshooting workflows. The practical advantage is correlated evidence and consistent role-based workflows, not the elimination of device operating-system differences. Group and site policy must still respect device function, software release and licensed capabilities.

A controller-only interface contradicts the multi-domain requirement; inventory-only monitoring omits configuration and policy workflows. Central provides shared operational context for switches, APs, and gateways, while retaining device-specific functions.

Official HPE references | Planets in Global Monitoring Page • Device Health Card | Study-guide topic: Network Management with HPE Aruba Networking Central

Technical explanation

The timeline allows metrics and events to be viewed within the same historical period as the reported slowdown, making temporal correlation possible. Compare interface throughput, link errors, CPU alarms, client health and configuration changes for the chosen window. A coincident alert is only a lead; corroborate a causative relationship through device counters or reproducible symptoms. The Hardware card is best for component condition, and the Connectivity card may expose the metrics, but the time-range widget is what makes historical comparison practical.

Hardware inventory does not reveal the past throughput curve. Connectivity data is useful only when viewed at the required period; the Timeline widget is the explicit control for changing the observation window.

Official HPE references | Device Health Card • Troubleshooting Tools | Study-guide topic: Managing Wired Networks with HPE Aruba Networking Central

Technical explanation

Client load balancing steers eligible stations toward less busy APs, improving distribution of radio airtime and reducing localized saturation. Decisions depend on RF adjacency, compatible client behavior and valid coverage; it cannot force arbitrary clients to accept a particular target. Verify which APs and bands carry the imbalance, their airtime load, and whether sticky clients or roaming constraints contribute. Manually pinning channels changes RF reuse rather than station association, and lowering minimum rates can permit distant clients to occupy even more airtime.

Static channel assignment may solve a localized RF plan defect but does not distribute clients across otherwise healthy radios. Lowering minimum rates risks consuming more airtime. Load balancing acts on where suitable clients associate, subject to client roaming behavior.

Official HPE references | AirMatch • AOS-10 Cloud Services | Study-guide topic: Introduction to AOS-10

Technical explanation

Choose the affected site, associate the correct device function and apply the routing configuration at that scope. The effective configuration is determined by Central's profile association and inheritance rules, including whether an object is shared or local; a site-level adjustment should not be assumed to propagate into other sites. Verify any cross-scope dependencies such as VRFs, interfaces, next hops and named objects. After deployment, compare the site's effective settings and switch routing table with an unaffected location to ensure no unintended global change.

Device scope is more specific but does not propagate “up” the hierarchy. Site collection affects multiple sites if inherited, making it too broad. Site scope retains the global baseline elsewhere while allowing the targeted routing configuration to differ.

Official HPE references | Multi-Level Hierarchy • System Profiles | Study-guide topic: Network Management with HPE Aruba Networking Central

Technical explanation

A guest role must implement explicit deny rules against internal RFC1918 ranges and sensitive management subnets, followed by permitted DNS, DHCP, captive portal and internet services as appropriate. Confirm the enforcement point: it may be an AP, a gateway, or a switch depending on the forwarding model. Segmentation by VLAN or VRF adds isolation, but a separate VRF is not universally mandatory when a correctly ordered stateful policy blocks east-west access. Test both DNS resolution and attempts to reach internal hosts. For validation, associate a guest device, obtain its assigned role and subnet, then test access to the internet and to an internal host on each protected network. A successful web redirect alone does not demonstrate isolation.

A mixed forwarding SSID is a traffic-location choice, not an authorization policy; bridging employees or tunneling guests does not itself deny private destinations. A distinct VRF can strengthen segmentation but is not inherently required for internet-only guest access.

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

Technical explanation

An AOS-10 gateway cluster coordinates user anchoring, tunnel termination, client-state synchronization and resilience across eligible members. A client session can be maintained by another cluster gateway during a supported failure or live-upgrade operation, subject to design and software capabilities. Verify tunnel reachability, cluster membership, role policy equivalence and available forwarding capacity on the surviving peer. VRRP provides a redundant virtual IP for certain designs but does not by itself reproduce all of the stateful mobility and gateway-cluster services involved in wireless user continuity.

VRRP protects a virtual default-gateway address but is not equivalent to AOS-10 gateway-cluster client-state orchestration. LACP cannot form a valid logical bundle between unrelated, unlinked gateways. Cluster membership supplies the stateful failover context. Check active tunnel and user-session state before simulating peer loss. A virtual IP floating between standalone routers is not proof that tunneled wireless client sessions survive a gateway failure.

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

Technical explanation

Anomaly detection compares observed telemetry against baselines rather than relying exclusively on static thresholds. Recurrent association failures, unusual RF retries, interface errors and abnormal device restarts can then be surfaced before incident volume grows. AI Insights should be treated as a prioritized diagnostic hypothesis: verify affected sites and devices, inspect contributing evidence, and implement a controlled corrective change. Not every recommendation is executed automatically; change control and operational ownership remain with administrators.

B reduces the platform to ticket creation, ignoring telemetry correlation and recommendations. C incorrectly portrays hardware replacement as a standard autonomous step. Engineers still assess whether an insight points to RF conditions, authentication, software, or failing hardware.

Official HPE references | AirMatch • AOS-10 Cloud Services | Study-guide topic: Network Management with HPE Aruba Networking Central

Technical explanation

A global firmware policy captures the intended version and device-function targeting so compliance can be monitored consistently across the managed estate. Confirm model compatibility, exceptions, upgrade scheduling and whether the hardware supports the selected image before enforcement. Sites with specialized requirements may need explicit model or scope exceptions; forcing an incompatible universal version would undermine standardization. AI Insights may recommend remediation but should not be treated as a silent, universal firmware installer. Inspect deployment state and post-upgrade reachability in the policy workflow.

AI Insights does not silently enforce a software version. A general system profile governs operating settings, not the firmware lifecycle. A Global firmware policy defines the target release and enforcement schedule, unless a more specific scope overrides it. For the common target version, use Menu > Firmware Management > Manage > Global > Create Firmware Policy. Define the device function, version and schedule.

Official HPE references | Creating a Firmware Policy • Live Upgrade | Study-guide topic: Managing Wired Networks with HPE Aruba Networking Central

Technical explanation

An 802.1Q trunk must interpret untagged frames consistently at both ends. Matching native VLAN configuration prevents an untagged frame from being mapped to different VLANs across the link. Also compare the allowed VLAN list, tagged/untagged treatment and whether the platform tags the native VLAN by explicit policy. Symmetric tagging may be valid as a separate design decision, but it is not a substitute for agreement on VLAN semantics. Test management and user reachability after any trunk change to detect silent VLAN leakage or blackholing. Native VLAN is a deliberate configuration, not something the switch dynamically chooses from broadcasts. Using different native VLANs can leak untagged traffic into unintended segments. Tagging the native VLAN on both sides is a separate compatible design, not the general consistency rule the question tests.

Official HPE references | Creating a VLAN Profile • Step 3—Configuring VLANs and Port Profiles | Study-guide topic: Managing Wired Networks with HPE Aruba Networking Central

Technical explanation

DPI identifies traffic according to application signatures and behavioral characteristics beyond traditional IP-address, port and protocol matches. That classification enables role-based rules and QoS decisions for applications such as collaboration, streaming or file sharing, even when services reuse common transport ports. DPI should not be equated with universal SSL interception; decryption requires separate, explicit capabilities and trust arrangements. Nor does it perform DHCP address allocation or Wi-Fi channel selection, which belong to different network subsystems.

DHCP relaying and RF channel selection are separate functions. Decrypting arbitrary SSL traffic is not implied by DPI; that would require additional TLS-interception capabilities and trust. DPI is useful because recognized application identities can be inputs to traffic policy.

Official HPE references | Application Visibility • AOS-10 Cloud Services | Study-guide topic: Introduction to AOS-10