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HPE Network Data Center Professional Exam Free Sample Questions

Description

Covers low-level data center design and bill of materials, equipment installation and validation, solution configuration, diagnostic troubleshooting, monitoring and reporting, and license maintenance.

12 free sample questions156 in the full practice test

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HPE7-A05 Sample Questions

  1. Question 1

    Intermediate

    Plan the Low-Level Design · Create a low-level design for deployment

    A financial institution is designing a new data center fabric using HPE Aruba Networking CX 8325 switches. The design requires a leaf-spine topology with EVPN-VXLAN for multi-tenancy. The architect needs to ensure that routing between different VRFs occurs at the leaf switches to minimize latency and traffic hair-pinning. Which Integrated Routing and Bridging (IRB) model should be specified in the Low-Level Design (LLD)?

    Answer and explanation

    Correct answer: D

    Symmetric IRB uses a transit VNI (L3 VNI) to route traffic between different VNIs/VRFs directly at the ingress leaf (or egress leaf depending on flow). This model supports distributed Layer 3 gateways on all leaf switches, allowing inter-VRF routing to occur at the edge without hair-pinning traffic to a spine or border leaf, thus optimizing latency.

  2. Question 2

    Beginner

    Plan the Low-Level Design · Validate the Bill of Materials (BoM)

    You are verifying the Bill of Materials (BoM) for a high-performance compute cluster. The design calls for CX 8360-48Y6C switches to connect servers using 25GbE interfaces. The servers are located in the same rack as the switch, with a maximum distance of 3 meters. To minimize cost and power consumption while ensuring reliability, which cabling solution should be validated in the BoM?

    Answer and explanation

    Correct answer: B

    For short distances (typically up to 3-5 meters) within a rack, Passive Direct Attach Copper (DAC) cables are the most cost-effective and power-efficient solution. They do not require separate transceivers and consume less power than Active Optical Cables (AOC) or SR transceivers.

  3. Question 3

    Advanced

    Plan the Low-Level Design · Create a low-level design for deployment

    An architect is designing an underlay network for a 3-stage Clos topology using AOS-CX switches. The requirement is to support ECMP load balancing across all available paths. Which routing protocol design choice best supports this requirement while minimizing configuration complexity for a large-scale deployment?

    Answer and explanation

    Correct answer: D

    Using eBGP for the underlay is a standard best practice in modern data center fabrics. Assigning a unique AS per leaf and a common AS for spines simplifies configuration (using peer-groups) and naturally prevents loops via AS_PATH, while supporting extensive ECMP capabilities without the flooding scope limitations of OSPF in very large fabrics.

  4. Question 4

    Intermediate

    Plan the Low-Level Design · Validate the Bill of Materials (BoM)

    A customer requires a data center switch solution that provides inline stateful firewall services to implement micro-segmentation for east-west traffic without tromboning traffic to a perimeter firewall. Which HPE Aruba Networking switch series should be proposed?

    Answer and explanation

    Correct answer: D

    The CX 10000 Series switches are equipped with the AMD Pensando Distributed Services Module (DSM). This architecture allows the switch to perform inline stateful services (firewall, NAT, encryption, telemetry) directly at the leaf layer, enabling distributed micro-segmentation without the performance penalty of routing traffic to a centralized firewall appliance.

  5. Question 5

    Intermediate

    Plan the Low-Level Design · Create a low-level design for deployment

    During the planning phase for a VSX cluster, the architect must ensure high availability during split-brain scenarios where the Inter-Switch Link (ISL) fails but both switches are still active. Which physical component must be included in the Low-Level Design to support the split-recovery mechanism?

    Answer and explanation

    Correct answer: C

    The VSX Keepalive link is a critical component for split-brain detection. It is a dedicated Layer 3 link (often using a 1GbE or 10GbE port) separate from the ISL. If the ISL fails, the keepalive link allows the switches to heartbeat and determine which switch should stay active (Primary) and which should shut down its VSX LAG member ports (Secondary) to prevent loops.

  6. Question 6

    Advanced

    Plan the Low-Level Design · Create a low-level design for deployment

    An organization is planning to deploy a multi-site EVPN-VXLAN fabric. They need to extend Layer 2 segments between two data centers over an IP WAN. Which routing component is required on the Border Leaf switches to facilitate the exchange of EVPN prefixes between the sites?

    Answer and explanation

    Correct answer: B

    To extend EVPN fabrics across a WAN (DCI), Border Leaf switches (or spines acting as border gateways) must peer via eBGP (typically) using the L2VPN EVPN address family. This allows them to exchange Type-2 (MAC/IP) and Type-5 (Prefix) routes between the separate fabric autonomous systems, enabling end-to-end VXLAN tunnels.

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