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

Technical explanation

Each VRF owns its own forwarding and routing table, allowing Guest, IoT and Employee segments to use separate default routes and route-import policies on supported switches. Associate the corresponding SVIs or routed interfaces with the intended VRF and control any deliberate inter-VRF leakage through explicit security mechanisms. An SVI on its own creates a Layer 3 interface but not an independent routing domain. Check DHCP relay, DNS access and upstream reachability per VRF, because control-plane separation does not automatically provision the services that each tenant needs. Where guest must reach a shared DNS server, use deliberate inter-VRF route leaking or firewall-controlled service access. A VRF does not automatically create a permitted path between tenant routing tables.

Routed interfaces by themselves do not establish separate routing-table instances. A single shared SVI profile cannot isolate tenant RIBs. Multiple VRFs create independent forwarding tables, with carefully controlled route leaking if cross-tenant access is required.

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

The series shorthand is a quick screening question rather than a migration compatibility matrix. Supported AOS-10 hardware spans selected 3xx, 5xx, and 7xx families. A serial-number inventory should be matched with HPE’s model-level support table and software release before scheduling AOS-10 adoption. Some older 3xx hardware has minimum or final supported releases; family membership does not override the exact SKU restrictions.

The options name broad hardware families rather than exact SKUs. The 2xx generation is outside the supported AOS-10 set, and “4xx series” is not included in the referenced supported-series choices. A 3xx selection still demands model-level and release-level validation.

Official HPE references | Supported Access Point Platforms for AOS-10 • AOS-10 Cloud Services | Study-guide topic: Introduction to AOS-10

Technical explanation

A device group is a logical configuration target independent of physical site membership, making it suited to switches distributed among 30 branches. Associate common VLAN and syslog profiles with that group, then assign each switch to its genuine physical site for operational reporting. Confirm that site-level variations such as management addresses or local gateway IPs are not accidentally overwritten. A temporary site falsifies location data, and global scope would apply configurations to more devices than the intended group.

Global scope risks including switches outside the intended thirty. Assigning everything temporarily to one site falsifies location and complicates operational visibility. Device-group scope permits common configuration across real sites without corrupting site membership. Create the profiles under Configuration at Device Groups scope, then apply them to the switch function; keep each switch associated with its actual site.

Official HPE references | Multi-Level Hierarchy • System Profiles | Study-guide topic: Managing Wired Networks with HPE Aruba Networking Central

Technical explanation

A tunneled SSID sends the relevant wireless user traffic to a gateway cluster, where the gateway can evaluate its stateful role-based policies. Confirm that the client's role is assigned at authentication, that the correct rules are installed at the gateway, and that user VLANs terminate on the cluster. Bridged forwarding keeps the datapath local, so policies on a remote gateway cannot inspect those frames. Mixed mode may tunnel selected VLANs, but the simple and unambiguous choice for all affected users is tunneled forwarding. If gateway inspection is mandatory for every client in the given role, mixed forwarding introduces an avoidable bypass condition because a locally bridged VLAN can avoid the gateway datapath.

Microbranch patterns provide selective site forwarding but do not automatically place every target session in the gateway datapath. Mixed mode can bridge some clients locally, bypassing centralized inspection. Tunnel mode makes gateway-side enforcement the explicit default path.

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

The Device Health summary provides an immediate qualitative assessment and can be expanded into the metrics or counts driving the classification. Review whether poor health is caused by uptime, hardware alarms, temperature, stack state or other supported indicators. The Hardware card exposes component detail but does not provide the same concise overall health categorization. The topology map answers where devices connect; health scoring answers which managed components require attention. Cross-check the classification against current device reachability before declaring an outage.

The Hardware card examines physical components, whereas the topology view is concerned with connection relationships. Neither replaces the direct health summary used for first-pass switch triage.

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

Technical explanation

Interpret the card as a triage tool: percentages place the sites with more severe health impact at the top, so an administrator can focus on locations needing action. The underlying site-health computation combines device health with client experience, rather than relying solely on offline device counts. A site without active clients may be evaluated using device health alone. When comparing apparently similar sites, open the underlying health bar and examine affected populations before prioritizing remediation exclusively from the ordering.

Option A puts alphabetic order before health severity; C moves names ahead of fair-health severity; D ranks fair above poor. The specified sort is severity-first, fair-health second, then name to resolve the remaining tie.

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

Technical explanation

Application-aware traffic steering selects appropriate paths according to intended access: internet/SaaS sessions exit directly at the branch, while protected corporate destinations traverse a secure tunnel to the central gateway or VPNC. Define the traffic identification, routing policy and NAT behavior so enterprise prefixes are not accidentally leaked onto the public internet. Validate DNS steering and failover when the primary tunnel becomes unavailable. Full tunneling adds needless SaaS backhaul, while bridging everything removes the central enterprise inspection and reachability requested. For a SaaS call, local breakout avoids an unnecessary detour through the data center, while a private ERP connection remains tunneled. Validate DNS steering and how the return traffic selects its route.

A full tunnel hairpins SaaS traffic to the corporate gateway; pure bridging loses the desired corporate tunnel path. Application-aware split tunneling distinguishes the two destinations. VPN reachability, DNS behavior, and return routes must support both paths.

Official HPE references | Layer 3 Microbranch - Validated Solution Guide • Configuring VLANs - Microbranch | Study-guide topic: Introduction to AOS-10

Technical explanation

AirWave was a traditional network management and monitoring product, whereas Central consolidates broader cloud-native configuration, lifecycle management, AI insight and cross-domain operations. A migration requires checking device support, licensing, configuration equivalence and historical monitoring requirements rather than assuming a simple database replacement. ClearPass continues to provide policy and AAA services where deployed, and Mobility Controllers or gateways participate in wireless traffic forwarding; these products are not the legacy management software intended by the question. ClearPass remains an access-policy/AAA product; a Mobility Controller or VPN concentrator forwards or terminates traffic. AirWave is the legacy network-management platform whose visibility and operations Central supersedes for supported deployments.

Official HPE references | Planets in Global Monitoring Page • HPE Aruba Networking Unified Infrastructure - Solution Overview | Study-guide topic: Network Management with HPE Aruba Networking Central

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

Technical explanation

Developer Hub provides API documentation and a live request facility. After choosing an endpoint, an operator can supply an access token and cluster and execute the API call. A GET may simply read telemetry; a write-capable request with the right privileges can modify cloud-managed objects or configuration. For that reason, the portal must be handled with the same safeguards as a production automation client. HPE’s API FAQ expressly describes execution of API calls from the API Reference page.

The sample-code-only claim in B is contradicted by the authenticated “try out” workflow. C is equally misleading: calls are real requests, although only a write-capable endpoint changes configuration. Option A therefore needs that HTTP-method qualification.

Official HPE references | Application Programming Interface (API) FAQ • Multi-Level Hierarchy | Study-guide topic: Network Management with HPE Aruba Networking Central