HPE7-A03 Sample Questions & Answers
Designing high-level topologies and selecting the right products carries the biggest weight, built on discovering a customer's goals and current setup, mapping requirements into technical solutions, and creating final design documentation to present.
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- Question 1Intermediate
Architect the Solution · Design high-level topologies
An architect is designing a two-tier campus network with a collapsed core/aggregation layer using two AOS-CX 8325 switches for redundancy. The access layer consists of multiple AOS-CX 6300 VSF stacks. The primary goal is active-active forwarding for all uplinks from the access layer and a control plane that remains active on both core switches to avoid failover downtime. Which technology should be implemented on the AOS-CX 8325 switches?
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Correct answer: A
VSX is the ideal technology for this scenario. It allows two separate switches to act as a single logical device from the perspective of downstream devices, enabling true active-active LACP uplinks from the VSF stacks. Crucially, VSX maintains independent control planes on each switch, meaning a software failure on one does not impact the other, providing high availability without downtime. VRRP is for gateway redundancy only, VSF is for stacking, and Multi-Chassis Link Aggregation (MC-LAG) is a general term, with VSX being Aruba's specific, advanced implementation.
- Question 2Intermediate
Analyze Requirements · Evaluate proposed solution
A network architect has proposed the following high-level design for a campus network. During a peer review, a colleague points out a potential single point of failure that violates the high-availability requirement.
What is the single point of failure in this design?
graph TD subgraph Core Layer CORE1(CX 8400) CORE2(CX 8400) end subgraph Aggregation Layer AGG1(CX 6400) AGG2(CX 6400) end subgraph Access Layer ACC1(CX 6300 VSF) ACC2(CX 6300 VSF) end subgraph Services FW(Firewall Cluster) CP(ClearPass Cluster) end CORE1 -- L3 --- AGG1 CORE2 -- L3 --- AGG2 AGG1 -- L2 LAG --- ACC1 AGG2 -- L2 LAG --- ACC2 CORE1 -- L3 --- FW CORE2 -- L3 --- FW CORE1 -- L3 --- CP CORE2 -- L3 --- CP %% Flaw AGG1 -. No Link .-> CORE2 AGG2 -. No Link .-> CORE1Show answer & explanation
Correct answer: B
The diagram shows that AGG1 only connects to CORE1, and AGG2 only connects to CORE2. If CORE1 fails, the entire network segment served by AGG1 (and ACC1) will lose its path to the core and external services. For true high availability, each aggregation switch must be connected to both core switches in a full-mesh or similar redundant topology.
- Question 3Beginner
Propose the Solution · Create design documentation
A project manager on a network deployment has asked the lead architect to provide a document that details the specific IP addresses, VLAN IDs, device hostnames, and port mappings for the engineering team to use during implementation. What is the standard name for this type of document?
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Correct answer: D
The Low-Level Design (LLD) document provides the detailed, specific information required for implementation. While the High-Level Design (HLD) outlines the overall architecture and approach, the LLD gets into the specifics like IP addressing schemes, VLAN mappings, and exact configuration details. A BOM lists parts, and a SOW defines project scope and deliverables.
- Question 4Beginner
Discover Requirements · Define the goals
When gathering requirements for a new campus LAN, an architect interviews the security team, who state that all network access must be controlled via 802.1X, and users must be placed into different VLANs based on their Active Directory group membership. What kind of requirement is this?
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Correct answer: C
This is a functional requirement. It specifies what the system must do: control access with 802.1X and assign VLANs based on AD groups. A constraint would be a limitation on the solution (e.g., 'must use existing RADIUS servers' or 'budget under $50k'). A non-functional requirement would describe how well the system does something (e.g., 'authentication must take less than 500ms').
- Question 5Intermediate
Analyze Requirements · Map requirements into technical solutions
A customer wants to implement a solution that provides visibility into the end-user experience for critical SaaS applications like Office 365 and Salesforce, even for users working remotely. The solution should proactively test network paths and identify performance degradation before users report issues. Which HPE Aruba Networking solution should be proposed?
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Correct answer: C
User Experience Insight (UXI) is the solution specifically designed for this purpose. UXI uses sensors (hardware or software agents) to continuously test network and application performance from the user's perspective. It simulates user actions and provides detailed insights into the health of services like Office 365, helping to identify issues proactively. NetEdit is for switch configuration, ClearPass Device Insight is for device profiling, and Central provides network management but not this specific synthetic monitoring capability.
- Question 6Advanced
Architect the Solution · Determine overlay and underlay design
An architect is evaluating a customer's existing campus network, which uses a legacy Nortel system with Shortest Path Bridging (SPB). The customer is satisfied with the stability of SPB but needs higher performance and a clearer path to future technologies. They have requested a solution that provides a similar active-active, loop-free Layer 2 fabric. Which HPE Aruba Networking architecture provides the most analogous modern equivalent to SPB?
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Correct answer: B
Shortest Path Bridging (SPB) is a Layer 2 fabric technology that uses IS-IS to build loop-free, active-active paths. The most direct modern, standards-based equivalent in the HPE Aruba portfolio is an EVPN-VXLAN fabric. Both create a logical fabric over a physical topology, provide active-active multipathing, and simplify L2 service extension. The other options either rely on blocking protocols like STP or are Layer 3 focused and do not provide the same L2 fabric characteristics as SPB.
- Question 7IntermediateSelect 3
Architect the Solution · Select correct products
A university wants to provide different levels of network access for various user types (students, faculty, guests, IoT). The security policy requires that devices are profiled automatically upon connecting, and access rights are granted based on the device type and user identity. Which HPE Aruba Networking products are essential to build this solution? (Select THREE)
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Correct answers: A, B, D
ClearPass is the core component, acting as the RADIUS server and policy engine. It authenticates users, profiles devices, and makes authorization decisions.
The switches (or APs) act as the Network Access Devices (NADs) or policy enforcement points. They query ClearPass for authorization and enforce the returned policies (VLAN, ACL, User Role).
An identity store like Active Directory is required for ClearPass to look up user credentials and group memberships to make role-based access decisions.
- Question 8Intermediate
Propose the Solution · Present the solution
An architect is presenting a solution to a client's Chief Financial Officer (CFO). The CFO is not technical but is concerned about the long-term costs of the proposed network refresh. Which aspect of the proposal should the architect emphasize during the presentation?
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Correct answer: C
When presenting to a financial stakeholder like a CFO, the focus should be on the business and financial implications. TCO (which includes initial purchase, operational costs, and maintenance) and ROI (which highlights financial gains from improved productivity, reduced downtime, etc.) are the key metrics that a CFO uses to evaluate an investment. Technical details are less important than the financial justification.
- Question 9Intermediate
Analyze Requirements · Determine possible high-level solutions
A large retail company with hundreds of stores is planning to deploy a standardized network architecture managed from a single point of control. A key requirement is zero-touch provisioning (ZTP) for new store deployments to minimize the need for onsite IT staff. After analyzing this requirement, the architect determines the solution must be cloud-based. Which HPE Aruba Networking product is the foundation for this architecture?
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Correct answer: A
HPE Aruba Networking Central is Aruba's cloud-based network management and operations platform. It is specifically designed for distributed enterprises and provides key features like ZTP, centralized configuration management via templates and groups, monitoring, and reporting, which perfectly match the retailer's requirements.
- Question 10Intermediate
Architect the Solution · Design high-level topologies
True or False: In a VSX environment, the Inter-Switch Link (ISL) is used exclusively for control plane synchronization and keepalives; it does not carry any end-user data traffic.
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Correct answer: B
This statement is false. While the ISL's primary roles are synchronization and keepalives, it also serves as a data path for traffic that needs to traverse between the VSX peers. This can happen for 'orphan' devices connected to only one peer or for Layer 3 traffic that is routed on one peer but needs to egress via a link on the other peer. This is often called the 'data plane' function of the ISL.
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