A typicaldata center networkconnects core computing and storage infrastructure, including:
B: Server
C: High-performance AI server
D: Storage devices (NAS, SAN, etc.)
A: Camerais not a core data center component; it may be connected via separatesurveillance or edge networks, not the maindata center network fabric.
Reference:
HCSA-IP Network V4.0 Study Guide - Chapter 7: Huawei Data Center Network Products and Solutions Huawei CloudFabric Network Architecture Guide

Huawei's wireless backhaul solution for rail transportation supports applications such as video surveillance, train-to-ground communication, and infotainment systems. However, it is explicitly stated in Huawei documentation that this solution is not designed for or certified to carry the safety-critical train signaling systems, which typically require dedicated and highly regulated communication networks.
Options A, C, and D are true and backed by Huawei's performance claims:
Handover delay can reach as low as 30 ms using dual-link active-active design.
Video backhaul is maintained even at speeds up to 160 km/h.
Reference:
Huawei HCSA-IP Network V4.0 Study Guide, Chapter: "Huawei Campus WLAN Products and Solutions", Section: "Industry WLAN Applications" Huawei Rail Wireless Backhaul Solution White Paper
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Huawei'sWAN solution for the energy/electric power industryfocuses onultra-low latency, high security, and intelligent O&M, with highlights including:
A: SRv6-based intelligent traffic steering
C: 10G FlexE, which ensuresindustry-leading low delay
D: SDN-based automatic O&M, enabling minute-level service provisioning and jitter control (e.g.,<10 #sjitter) MACsec encryption (B)is not listed as a specific highlight of the WAN solution for electric power, though it may be used in security-focused sectors. Instead,Huawei promotes IPsec and deterministic IP technologies for power industry WANs.
Reference:
HCSA-IP Network V4.0 Study Guide - Chapter 6: Huawei WAN Products and Solutions Huawei Electric Power Industry WAN White Paper

Huawei'sWAN solution, particularly itsCloudWAN and SRv6-based architecture, is built on theIPv6 Enhancedtechnical system. This system integrates:
SRv6 (Segment Routing over IPv6)
IFIT (In-situ Flow Information Telemetry)
Network slicing and intelligent path computation
These technologies serve as the foundation forintelligent, high-performance WAN connectivity, forming the backbone forindustry digital transformation and intelligent applications.
Reference:
HCSA-IP Network V4.0 Study Guide - Chapter 6: Huawei WAN Products and Solutions Huawei IPv6 Enhanced White Paper

Huawei defines thecore technical fields of campus networksas:
WLAN (Wireless LAN)
Wired LAN (Switching Network)
SD-WAN, when used forbranch interconnectionwithin enterprise campuses
WAN, on the other hand, is a broadercarrier-class infrastructureandnot specifically categorized as a campus network technology. It refers to long-distance, backbone, or ISP-level connectivity beyond the scope of typical enterprise campus deployments.
Reference:
HCSA-IP Network V4.0 Study Guide - Chapter 3: Huawei Campus Network Solution and Switch Products Huawei CloudCampus Network Solution Overview