HPE4-A54 HPE Networking Campus Access Architect Expert Practical Exam Practice Questions
Prepare for HPE4-A54 with more than an answer.
- Time limit
- 240 minutes
- Questions on the exam
- 17
- Passing score
- 65%
- Level
- Expert
Domains covered on the exam 4
- Discover Requirements23%
- Build a high-level design30%
- Document the Design30%
- Propose the Solution17%
- 1
You are building a high-level design for a campus aggregation layer. The customer requires hitless firmware upgrades (zero downtime for data plane traffic) and active-active forwarding across two aggregation switches. Which technology MUST you select for the aggregation layer?
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Correct answer: A
Aruba VSX allows two independent control planes to operate while sharing a unified data plane via multi-chassis link aggregation. This architecture supports hitless firmware upgrades (Live Upgrade), where one switch reboots while the other maintains traffic forwarding.
- 2
A large enterprise wants to implement role-based micro-segmentation across their entire campus network. They want to ensure that IoT devices cannot communicate with HR workstations, even if they are on the same VLAN, without installing agents on the endpoints. Which TWO technologies should you include in the high-level design? (Select TWO)
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Correct answer: A, B
Aruba Central NetConductor provides network-wide role-based policy orchestration. It uses EVPN-VXLAN and Group Policy Identifiers (GBP tags) to enforce micro-segmentation at the switch level regardless of IP subnet or VLAN.
ClearPass is required to authenticate endpoints, profile IoT devices, and dynamically assign the roles (which map to GBP tags) to the edge switches. NetConductor relies on ClearPass for the identity portion of the solution.
- 3
You are creating a functional workflow for an EVPN-VXLAN campus network. A new client connects to an access switch (VTEP A). Which sequence correctly describes how the client's MAC address is propagated to other access switches (VTEP B) in the fabric?
sequenceDiagram participant Client participant VTEP_A participant RouteReflector participant VTEP_B Client->>VTEP_A: 1. Sends ARP/Traffic VTEP_A->>VTEP_A: 2. Learns MAC locally VTEP_A->>RouteReflector: 3. ????? RouteReflector->>VTEP_B: 4. ?????Show answer details
Correct answer: A
In EVPN, local MAC and IP learning occurs via data plane (e.g., ARP). Once learned, VTEP A advertises this information into the control plane using a BGP EVPN Type 2 route (MAC/IP Advertisement). The Route Reflector receives this and forwards it to all other VTEPs (like VTEP B).
- 4
You are assessing a customer's current environment for a campus core upgrade to HPE Aruba Networking CX switches. The customer currently uses a legacy 3-tier architecture with MSTP for loop prevention. They have experienced occasional network-wide outages due to broadcast storms. Which discovery action is MOST critical before proposing a modern AOS-CX VSX core deployment?
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Correct answer: A
When migrating from a legacy spanning tree environment to a VSX core, it is critical to understand the existing MSTP configuration (regions, revisions, root placement). VSX switches can participate in MSTP, but misconfigurations during migration (such as mismatched region names) can isolate the new core or cause loops. Understanding the root bridge placement allows the architect to plan the shift of the root to the new VSX core.
- 5
During a requirements discovery workshop, a university CIO states: 'We need to reduce our operational expenses by 20% over the next three years while ensuring students can connect seamlessly across the entire 50-building campus.' Which TWO of the following represent the translation of these business goals into verifiable technical requirements? (Select TWO)
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Correct answer: A, B
The business goal of reducing operational expenses translates to technical requirements for centralized management, automation, and AIOps (provided by Aruba Central) to reduce IT overhead and troubleshooting time.
The business goal of 'connecting seamlessly across the entire campus' translates technically to a requirement for fast roaming (Layer 2 or Layer 3 roaming with session persistence), which often dictates the use of Aruba Gateways or EVPN-VXLAN to stretch subnets or handle mobility.
- 6
You are designing a wireless network for a historical building where the customer cannot provide architectural floor plans with accurate wall attenuation values. A physical site survey is not permitted until after the contract is signed. How should you properly document this situation in your design proposal?
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Correct answer: A
When critical data (like wall attenuation in a historical building) is missing and cannot be obtained, the architect must document a baseline assumption (e.g., standard drywall or brick) and clearly state the associated risk that the Bill of Materials (BoM) and design may require modification once a physical survey is conducted.
