Huawei H19-301_V3.0 Exam Questions

SNMP (Simple Network Management Protocol) is a widely used protocol for managing and monitoring network devices. In an SNMP-based network:

Each managed device runs anagent processthat collects and stores management information.

Themanagement process(typically running on a Network Management System, or NMS) communicates with the agent using SNMP messages.

SNMP defines several types of messages, such as GET, SET, and TRAP, which allow the NMS to query or modify device configurations and receive notifications from the agent. Other options like NETCONF, HTTP, and YANG are unrelated to SNMP communication.

HCSA-Presales-IP Network Study Guide, Section: 'Network Management Protocols and SNMP.'

Huawei Network Management Documentation, SNMP Overview.

WhileForward Error Correction (FEC)is a valuable feature in Huawei's SD-WAN solution for mitigating packet loss, it is not recommended to enable FEC forall traffic. FEC introduces additional overhead by transmitting redundant data, which can consume bandwidth and degrade performance for non-critical traffic.Instead, FEC should be selectively enabled for sensitive applications (e.g., real-time voice and video) where packet loss has a significant impact. This approach balances performance and resource utilization effectively.

HCSA-Presales-IP Network Study Guide, Section: 'SD-WAN Packet Loss Mitigation Techniques.'

Huawei SD-WAN Solution Documentation, FEC Configuration Guidelines.

Huawei'sSD-WAN multi-fed and selective receiving technologyis not limited to5G links. This technology can be applied to various types of WAN links, including MPLS, Internet, LTE, and 5G, to optimize traffic steering and improve reliability.The multi-fed feature allows multiple links to be used simultaneously, while selective receiving ensures that the best path is chosen for each application based on real-time conditions. This flexibility makes the technology applicable across diverse network environments, not just 5G.

HCSA-Presales-IP Network Study Guide, Section: 'SD-WAN Multi-Fed and Selective Receiving Technology.'

Huawei SD-WAN Solution Documentation, Link Aggregation and Optimization.

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.

HCSA-Presales-IP Network Study Guide, Section: 'SD-WAN Networking Models.'

Huawei SD-WAN Solution Documentation, Supported Architectures.

Huawei'sAR routerssupport multiple deployment modes to simplify network setup and management:

USB-based deployment:Configuration files can be loaded via USB drives, enabling rapid deployment without manual intervention.

DCN deployment:Devices are automatically discovered and configured through Huawei's Device Control Network (DCN), streamlining large-scale deployments.

DHCP option-based deployment:Routers obtain configuration parameters from a DHCP server, reducing manual setup efforts.

Email-based deployment:Configuration files can be sent to devices via email, allowing remote provisioning.

These modes cater to different scenarios, ensuring flexibility and ease of deployment.

HCSA-Presales-IP Network Study Guide, Section: 'AR Router Deployment Modes.'

Huawei AR Router Product Documentation, Deployment Options.