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HPE Aruba Networking Certified Network Architect - Campus Access Questions and Answers

Question 1

ACME Retail has 38 locations spread out across five US states and two provinces in Canada. They are looking to grow 20% over the next two years. They have a head office (HO) with a staff of 200 employees. The organization has eight regional managers and two VPs who work from home and on the road. Stores typically have 17 employees on average per location.

The two warehouses have a remote loading system and 20 employees each to load the trucks and fulfill the online orders. The warehouse has 40-foot ceilings and large metal racks to store inventory. The main warehouse is 240,000 sq ft (≈22,300 sqm), and the Canadian warehouse is 130,000 sq ft (≈12,100 sqm). Forklifts on the loading docks are equipped with wireless tablets onboard.

A typical store is about 60,000 sq ft (≈5,575 sqm), and smaller stores are planned at 25,000 sq ft (≈2,320 sqm). The locations need to expand wireless access to vendors who set up displays or interactive kiosks.

The current infrastructure was installed in 2015 using wireless N technology in a coverage model. Wiring is Cat5, and fiber connections are uncertain. Inventory is placed directly on the floor when delivered.

Inventory control is handled through Zebra barcode scanners, but poor coverage and signal issues have made monthly inventory counts difficult.

The organization has a small help desk for store support and PC support for the office. The company plans to move away from the current PBX system later this year. They want to cut costs, move services to the cloud, and achieve real-time inventory control for online order fulfillment.

The network has been wired over the last 10 years, but new systems are trending wireless. They want to provide wireless access for employees, guests, vendors, and contractors. The new IT director will start next week, and the CTO has prioritized this project.

Additional context:

Marketing wants to interact with customers and collect more data.

The IT support desk needs to reduce staff by half.

The HO has an MDF and two IDFs (floors 1 and 2).

WAN circuits exist for HO.

Each store has a local Ethernet handoff from the cable provider in the office.

Budget is a concern, but the solution must last 7+ years.

Based on best practices and customer requirements, what is the correct WLAN approach?

Options:

ArubaOS 10 AP and Gateway deployment

InstantOS 8 deployment

ArubaOS 10 AP-only deployment

ArubaOS 8 Campus deployment

Buy Now

Answer:

Explanation:

Why ArubaOS 10 (AOS10):

ArubaOS 10 is the current next-generation WLAN architecture, designed for both campus and distributed branch deployments.

It supports cloud-native management via Aruba Central, aligning with ACME’s move to the cloud.

Provides scalability for 7+ years, meeting the long-term investment requirement.

Supports Wi-Fi 6/6E APs, which are essential for high-density retail and warehouse environments.

Why Gateways are Needed:

Gateway role is critical to support:

Tunneled traffic for segmentation (guest, vendor, employee).

Cloud Guest Authentication and captive portal functions for customers.

Application visibility and role-based policy enforcement.

Integration with SD-Branch WAN for resilience and cost control across remote stores.

Gateways ensure the unified policy enforcement across all sites (head office, branches, warehouses, retail stores).

Why Not the Other Options:

B (InstantOS 8): Outdated architecture, limited to smaller standalone AP deployments, not recommended for enterprise growth or cloud-centric operations.

C (AP-only AOS10): Provides Wi-Fi but lacks gateways, meaning no central policy enforcement, tunneling, or role-based segmentation. This would not meet ACME’s requirements for guest/vendor access control, WAN resiliency, and security.

D (ArubaOS 8 campus): Legacy controller-based solution, being phased out in favor of AOS10. Does not align with cloud-first and future-ready requirements.

Requirement Mapping to AOS10 AP + Gateway deployment:

Real-time inventory & Zebra scanners → Reliable Wi-Fi 6E AP coverage with low latency.

Cloud-based operations → Aruba Central + AOS10 integration.

Guest, vendor, employee segmentation → Policy enforcement firewall and dynamic segmentation via gateway tunneling.

Warehouses with high ceilings → Wi-Fi 6E APs with appropriate antenna design (AOS10 supports full AP portfolio).

Cut IT staff in half → AI Insights and automation in Aruba Central reduce troubleshooting complexity.

Marketing customer interaction → Cloud guest services and analytics integration with Aruba Central.

7+ year lifecycle → AOS10 architecture is future-proof and actively developed, unlike legacy OS8.

Final Justification:

The only solution that meets all customer requirements (cloud-based management, role-based segmentation, tunneling, guest/vendor access, real-time inventory, scalability, and 7+ years longevity) is an ArubaOS 10 AP and Gateway deployment.

Question 2

'Don't Buy at Us' is a US-based retail company that is expanding Into Europe. They are expanding into EMEA with a regional headquarters called HQ2 inside The Netherlands.

Their US-based headquarters HQ1 was refreshed last year based on the Aruba ESP architecture. You have treated the design for HQ? based on the same design as HQ1. a two-tier architecture. The high level is shown below.

Switch BOM for this project based on Two Tier:

Collapsed Core: 2 x Aruba 8360-16Y2C in VSX (ISL 2» ICOG0E DAC)

Access Slack: 10 x Slack of Aruba 6200F 48G Class4 PoE 4SFP- 740W each stack has A members. VSF

with 10GbE VSF links) 12 x 10GbE uplink pet stack)

During the presentation of your design to the CTO of 'Don't Buy at Us' you were informed about the updated fiber infrastructure that Don't Buy at Us' has installed in HQ2.

The core stack is Installed in the MDF and per IOF there is one access stack installed. Based on best practice, what is the most cost-effective update to the switch BOM?

Options:

core: 2 x 8360-16Y2C in VSX (ISL 2x100GbE DAC)

access stack: 10 x stack of Aruba 6200F 48G Class4 PoE 4SFP+ 740W (each stack has 4 members, VSF with 10GbE VSF links) (2 x 10GbE uplink per stack) optics: 12 x 10Gbit-SR + 8 x 10Gbit-LR

core: 2 x 8360-16Y2C in VSX (ISL 2x100GbE DAC)

access stack: 10 x stack of HPE Aruba Networking 6200M 48G Class4 PoE 4SFP+ (each stack has 4 members, VSF with 10GbE VSF links) (2 x 10GbE uplink per stack) optics: 12 x 10Gbit-SR + 8 x 10GbiLLR

core: 2 x 8360-16Y2C in VSX (ISL 2x100GbE DAC)

access stack: 10 x stack of Aruba 6200F 48G Class4 PoE 4SFP+ 740W (each stack has 4 members, VSF with 10GbE VSF links) (2 x 10GbE uplink per stack) optics: 10 x 10Gbit-SR + 10 x 10Gbit-LR

core: 2 x 8360-16Y2C in VSX (ISL 2x100GbE DAC)

access stack: 10 x stack of HPE Aruba Networking 6200M 48G Class4 PoE 4SFP+ (each stack has 4 members, VSF with 10GbE VSF links) (2 x 10GbE uplink per stack) optics: 12 x 10Gbit-SR +8 x 10Gbit-LRM

Question 3

A customer wants to have the ability to show network usage. Which product would allow them to have this visibility?

Options:

UXI

HPE Aruba Networking Central

ArubaOS 8.x

HPE Aruba Networking ClearPass

Answer:

Explanation:

Aruba Central:Aruba Central is the cloud-native management and monitoring platform within the Aruba ESP architecture. It provides:

Network usage visibility: dashboards and reports on client, application, and device traffic across wired, wireless, and WAN.

Application visibility and deep packet inspection (DPI): showing how much bandwidth is consumed by each app or category.

Historical and real-time analytics: enabling IT to monitor utilization trends and demonstrate network usage to stakeholders.

Why not the other options?

UXI (User Experience Insight): Provides end-user experience monitoring by using sensor devices to simulate client behavior (e.g., connectivity tests, SaaS performance), but it does not give full network usage visibility in terms of traffic volume or bandwidth utilization.

ArubaOS 8.x: This is the operating system for Aruba mobility controllers and APs, enabling advanced WLAN features, but not a dedicated platform for traffic visibility dashboards or long-term usage reporting.

ClearPass: Provides policy-based access control and security (authentication, authorization, accounting, device profiling), but it is not designed to show network traffic usage or utilization statistics.

Aruba Design Guidance Alignment:According to Aruba’s Campus Access Design Guides and Aruba Central documentation, the correct tool for showing and reporting network usage visibility is Aruba Central, which integrates AI Insights, traffic monitoring, and reporting capabilities as part of the ESP cloud platform.

Final Justification:

Option B is correct because only HPE Aruba Networking Central provides the ability to monitor and display network usage visibility in a centralized, graphical, and reportable way.

Reference Extracts (Aruba Official Study & Design Guides):

Aruba ESP Campus Design Guide: Aruba Central as the management and visibility layer.

Aruba Central Technical Overview: built-in dashboards for bandwidth utilization, client traffic, and application visibility.

Aruba Central AI Insights: usage trends and capacity monitoring.

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