Pass the Huawei HCSA-IP Network H19-301_V4.0 Questions and answers with ValidTests

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.

Option D is false. The AirEngine 6776I-X7TH is an indoor high-density AP and does not have built-in omnidirectional antennas; instead, it often uses external directional antennas, particularly when deployed in large venues like stadiums or exhibition centers.

Correct information for other options:

A: IP68 is indeed the highest industry standard for dust/water resistance in outdoor APs.

B: The AirEngine 8760R-X1 supports BLE 5.0 and can deliver PoE output to other devices (such as cameras).

C: The AirEngine 6760R-51/51E supports tri-radio with a combined rate of up to 10.75 Gbps.

M-LAG (Multi-Chassis Link Aggregation Group)is a technology that allowslink aggregation across two physical devices, enabling:

Active-active system deployment

Traffic load balancing

Backup protection without relying on stacking

UnlikeEth-Trunk, which aggregates links on the same device,M-LAGextends this functionality across multiple devices.

LLDPis a discovery protocol andStackrefers to virtual device technology, not specifically inter-device link aggregation.

Huawei'sWAN ISP solutionis designed for Internet Service Providers (ISPs) with the following key highlights:

A. 99% satisfaction of customer requirements: Huawei emphasizes its end-to-end solution capability and customer satisfaction, making the solution highly competitive and marketable.

B. BNG/CGN/SR/IPsec 4-in-1 design: This integration minimizes device deployment and simplifies O&M.

C. Compact design (1U/2U): Ideal for small PoPs (Points of Presence), improves space efficiency.

D. Energy-saving: Huawei routers adopt energy-saving technologies, helping reduceenergy consumption by up to 30%.

These features are documented in Huawei'sISP WAN Solution brochureand emphasized in HCSA-IP training.

Huawei’sintelligent multimedia scheduling technology, deployed in theirCloudCampus and Wi-Fi 6 network solutions, usesapplication-level identification and intelligent QoSto:

Prioritize latency-sensitive services such asaudio and video

Dynamically allocate bandwidth duringnetwork congestion

Achieve lower latencycompared to industry benchmarks

This capability is part of Huawei’siMaster NCE-Campusplatform andAirEngine access points.

Huawei’sXinghe Intelligent Ultra-Resilient Multi-DC Network Solutionoffers the followingfour key benefits:

A. Three-level reliability: Ensures network-level, device-level, and link-level fault tolerance with99.999% availability.

B. Intelligent O&M: Provides always-online services with proactive health monitoring and fault prediction.

C. Network fault locating in minutes: Uses AI and telemetry to pinpoint faults in real time.

D. Unified deployment: Reduces provisioning time from days to minutes through automation.

These features make the solution ideal for large-scale and critical DC environments.

Huawei outlines theevolution of disaster recovery (DR)in data centers infour phases:

B. Single DC– No DR capability; all services reside in one data center.

C. Primary/Backup DC– Two data centers where one is primary and the other acts as a backup.

A. Two-site three-DC– One production site and two DR sites (or combinations).

D. Multi-site multi-DC– Advanced architecture with distributed data centers and cross-DR capabilities for resilience.

These are officially listed asDR evolution stagesin Huawei's multi-DC solution strategy.

QoS (Quality of Service)is thetechnology used to prioritize and guarantee bandwidthand latency performance forVIP users and mission-critical applications. It enables:

Traffic classification and prioritization

Bandwidth guarantees and rate limiting

Low latency paths for real-time services

A. IPsec VPN– Provides secure tunneling, not traffic prioritization

B. SSH and C. SSL– Offerencryptionfor secure access, but not performance assurance

Huawei’s iMaster NCE and digital intelligent O&M strategy focus on transforming traditional KPI-based monitoring into user- and application-centered assurance models.

A. VIP user experience: Priority monitoring and alerting for key users.

B. Terminal experience: Insights into access quality, authentication failures, and connection drops.

C. Wireless experience: Coverage maps, roaming statistics, interference detection.

D. Application experience: Ensures performance for latency-sensitive apps like voice/video through QoS and deep packet inspection.

Huawei SD-WAN providesflexible Internet access optionsbased on enterprise architecture and policies:

A. Centralized Internet access: Internet traffic from branches is sent to HQ or data center before being forwarded to the Internet

C. Local Internet access: Internet traffic is directly forwarded at the branch (also called DIA — Direct Internet Access)

D. Hybrid Internet access: Combines centralized and local Internet access based on application type or policy

B. Remote Internet accessisnot a standard Huawei-defined modein this context.