Free Huawei H19-402_V1.0 Practice Test & Real Exam Questions

Exam Code/Number: H19-402_V1.0
Exam Name/Title: HCSP-Presales-Data Center Network Planning and Design V1.0
Certification Provider: Huawei
Corresponding Certification: HCSP-Presales-Data

Exam Questions: 62
Updated On: Oct 05, 2026

Question #1

(Reliability design is important for the physical network design of a data center. Which of the following are true about reliability design principles?)

A. Peer-link fault: When the peer-link in an M-LAG fails, the DAD mechanism prevents dual master devices on the network and improves reliability.

B. Uplink reliability of leaf nodes: ECMP is implemented between leaf and spine nodes through multiple links.

C. Server link reliability: One server is dual-homed to two server leaf nodes, and NICs on a server work in load balancing or active/standby mode. If one server link fails, services are switched to the redundant or standby link.

D. When modular switches are deployed on the network, the inter-card connection is recommended for uplinks and downlinks, stack link, and peer-link of modular switches to implement card-level reliability.

Discussion 0

Correct Answer: A,B,C,D Vote an answer

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Question #2

Which of the following is not a characteristic of high-performance networks?

A. High throughput

B. Low latency

C. Zero packet loss

D. Higher GPU computing power

Discussion 0

Correct Answer: D Vote an answer

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Question #3

(What are the application scenarios of the overlay network?)

A. Network NFV cloud (network cloud and SDN + NFV)

B. Public cloud service (IaaS/PaaS/SaaS)

C. Hosting services in traditional IDCs

D. Private cloud (converged resource pool deployment and data center integration)

Discussion 0

Correct Answer: A,B,C,D Vote an answer

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Question #4

Which of the following is not a requirement of AI computing on networks?

A. High-performance computing (HPC)

B. Traffic control in incast scenarios

C. Fast and efficient load balancing

D. Quick congestion control

Discussion 0

Correct Answer: A Vote an answer

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Question #5

Which of the following multi-DC interconnection solutions are supported by the CloudFabric Solution?

A. Multi-DC

B. Multi-VPC

C. Multi-PoD

D. Multi-Site

Discussion 0

Correct Answer: A,C,D Vote an answer

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Question #6

Which of the following are characteristics of distributed VXLAN gateways?

A. A leaf node can function as both a Layer 2 VXLAN gateway and a Layer 3 VXLAN gateway, supporting flexible deployment.

B. A distributed VXLAN gateway (leaf node) only needs to learn the ARP entries of servers connected to it, whereas a centralized Layer 3 VXLAN gateway needs to learn the ARP entries of all servers on a network. Therefore, the number of ARP entries supported is no longer a bottleneck on distributed VXLAN gateways, and the network scalability is improved.

C. The number of ARP entries supported is a bottleneck. A single Layer 3 gateway is used. For tenants whose traffic is forwarded by the Layer 3 gateway, ARP entries must be generated for the tenants on the Layer 3 gateway, but only a limited number of ARP entries are allowed by the Layer 3 gateway, which impedes data center network expansion.

D. Forwarding paths are not optimal. Inter-subnet Layer 3 traffic between devices connected to the same gateway in a data center must be transmitted to a unified Layer 3 gateway for forwarding.

Discussion 0

Correct Answer: A,B Vote an answer

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Question #7

Which of the following statements is false about M-LAG and stacking?

A. Fault domains in an M-LAG are isolated.

B. An M-LAG needs to manage two switches.

C. Upgrading a stack is complex.

D. An M-LAG has a centralized control plane.

Discussion 0

Correct Answer: D Vote an answer

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