Huawei Updated H19-301_V3.0 Exam Questions and Answers by wiktor

Huawei's datacom portfolio includes the "Four Engines" product families:

NetEngine : Routers for wide-area networks.

CloudEngine : Switches for data center networks.

AirEngine : Wireless access points for Wi-Fi networks.

HiSecEngine : Security products for comprehensive protection.

AREngine is not part of the "Four Engines." It is unrelated to Huawei's datacom portfolio and focuses on augmented reality (AR) technologies.

Thus, the correct answer is C .

Huawei'sSD-WAN solutionsupports multiple networking models to meet diverse enterprise requirements:

Hub-spoke networking:Centralizes traffic through a hub site, ideal for security and policy enforcement.

Hierarchical networking:Organizes sites into tiers (e.g., regional hubs and branches), enabling scalable architectures.

Partial-mesh networking:Connects critical sites directly while routing other traffic through hubs, balancing performance and cost.

Full-mesh networking:Provides direct connections between all sites, ensuring optimal performance for latency-sensitive applications.

Intelligent HQoSis not a networking model but rather a feature that enhances Quality of Service (QoS) across any of these models.

The Huawei NetEngine 8000 M6 series routers are designed for robust performance in various environmental conditions. For models with DC power supply , the normal operating temperature range is -20°C to +65°C .

Below is an explanation of the other options:

0°C to +45°C : This range is too narrow and does not reflect the router's actual capabilities.

-40°C to +65°C : This range applies to extreme environments and is typically associated with AC-powered models or specialized variants.

-20°C to +45°C : This range is incorrect for DC-powered models, as the upper limit is lower than the actual specification.

Thus, the correct answer is B , as the operating temperature for DC-powered NetEngine 8000 M6 routers is -20°C to +65°C .

IPsec (Internet Protocol Security)is theprimary encryption protocolused inHuawei's SD-WAN solutionforsecuring site-to-site and remote access connections.

Why not other options?

DTLS (Datagram Transport Layer Security)is mainly used forVPNsbut is not the primary encryption method in SD-WAN.

SSL (Secure Sockets Layer)is used for web-based encryption butnot for SD-WANtunnels.

SSH (Secure Shell)is used forremote device management, not for encrypting SD-WAN traffic.

????Reference:HCSA-Presales-IP Network Official Documentation – SD-WAN Security & Encryption