Aruba Architect Expert (Written) study guide
Aruba Architect Expert (Written) · Work through your exam, one topic at a time.
The Aruba Architect Expert (Written) is a senior-level certification exam for network professionals who design HPE Aruba Networking solutions rather than simply operate them. It targets engineers, consultants, and solution architects who already hold professional-level Aruba credentials and now need to demonstrate end-to-end design judgment across campus, branch, data center, WAN edge, security, automation, and assurance. The Aruba Architect Expert (Written) study guide has 7 sections and about 2,055 words.
01Network Architecture and Design Methodology
Architect-level questions reward candidates who can show a repeatable methodology: capture business and technical requirements, derive a logical design, validate it against constraints, then produce a physical implementation and migration plan. Know the vocabulary of structured design (hierarchical core/distribution/access, modularity, redundancy, scalability, manageability) and the difference between a logical topology (VLANs, subnets, routing domains, trust boundaries) and a physical topology (devices, links, media, power).
307 words, about 2 min02Campus and Branch Wired/Wireless Design
Candidates should be fluent in hierarchical campus design: access layer for endpoint attachment and PoE, distribution for policy and inter-VLAN routing, core for high-speed aggregation. Understand spanning-tree avoidance strategies (L3 access, MLAG/VSX-style multichassis aggregation), link aggregation, and the trade-offs of large L2 domains versus routed access.
323 words, about 2 min03Data Center and WAN/Edge Design
Expect questions on spine-leaf (Clos) fabrics: why leaf switches connect only to spines, how ECMP provides active-active paths, and why a consistent hop count simplifies troubleshooting. Understand VXLAN overlay with an EVPN control plane, the role of VTEPs, and how overlay independence from the physical underlay enables workload mobility.
292 words, about 1 min04Security Architecture and Segmentation
Architect questions test whether you can place trust boundaries deliberately rather than reactively. Understand segmentation by user role, device type, and function (for example IoT versus corporate versus guest), and the enforcement options: VLANs with ACLs, stateful firewalling, microsegmentation, and identity-based policy.
289 words, about 1 min05Network Automation, Orchestration, and APIs
Distinguish automation (executing a task reliably), orchestration (coordinating multiple systems toward an outcome), and assurance (verifying the outcome). Know the common interfaces: REST APIs with JSON, NETCONF/YANG, RESTCONF, SNMP for legacy polling, and streaming telemetry for high-frequency state.
291 words, about 1 min06Monitoring, Analytics, and Assurance
Know the difference between SNMP polling (periodic, coarse) and streaming telemetry (continuous, high-resolution, push-based). Understand what each layer measures: infrastructure health (CPU, interface errors, PoE), flow data (NetFlow/IPFIX), wireless RF metrics (channel utilization, retries, SNR, client experience), and application experience (synthetic tests, latency, jitter, MOS).
276 words, about 1 min07Migration, Lifecycle, and Business/Operational Considerations
Architect-level questions expect you to plan across the whole lifecycle: plan, design, implement, operate, optimize, and retire. Know how to sequence a migration to minimize risk: inventory the current state, define the target, choose a migration pattern (big bang, phased by building/floor, parallel run, or pilot), and define rollback and acceptance criteria for each phase.
277 words, about 1 min