Huawei HCSA-Presales-Transmission & Access H19-315 Exam Questions

Answer : B

The correct answer isDBA (Dynamic Bandwidth Allocation). DBA is a critical technology in GPON systems that dynamically allocates upstream bandwidth to Optical Network Units (ONUs) based on their real-time traffic demands. This ensures efficient utilization of the available bandwidth and prevents congestion in the upstream direction.

T-CONT (Traffic Container):While T-CONT is used to classify and manage different types of traffic (e.g., voice, video, data), it is not responsible for bandwidth allocation.

WDM (Wavelength Division Multiplexing):WDM is a technology used in optical networks to transmit multiple signals over a single fiber using different wavelengths. It is unrelated to bandwidth allocation in GPON.

Type B:Refers to a protection mechanism in GPON, not bandwidth allocation.

Huawei GPON Technology White Paper

ITU-T G.984.x Standards for GPON

Answer : B

The correct answer isMore complex. Enterprise production networks prioritize simplicity, intelligence, and security in optical transmission, rather than unnecessary complexity.

Here's an analysis of each option:

A . More intelligent:Enterprises increasingly demand intelligent networks that leverage AI and automation for tasks like fault detection, performance optimization, and service provisioning.

B . More complex:Complexity is generally undesirable in enterprise networks, as it increases operational overhead, raises costs, and introduces potential points of failure. Modern solutions aim to simplify network architecture while enhancing functionality.

C . Simpler:Simplicity is a key requirement for enterprise networks, enabling easier deployment, management, and troubleshooting. Solutions like converged platforms (e.g., MS-OTN) and automated tools (e.g., NCE-T) help achieve this goal.

D . More secure:Security is critical for protecting sensitive data and ensuring compliance with regulations. Features like hard pipe isolation, encryption, and access control are essential for enterprise networks.

By focusing on intelligence, simplicity, and security, optical transmission solutions can better meet the evolving needs of enterprise production networks.

Huawei Enterprise Optical Networking White Paper

ITU-T G.709 Standards for OTN

Answer : B

TheOptiXtrans E9624is a high-end optical transport platform designed for core networks. Itsmaximum cross-connect capacity is 24 Tbps per subrack, not 2.4 Tbps as stated in the question. This makes it one of the most powerful systems in Huawei's optical transport portfolio, capable of handling massive traffic volumes in backbone and metro-core networks.

The confusion may arise from other models in the series, such as the OptiXtrans E9605, which has a lower capacity. However, the E9624 is specifically engineered for ultra-high-capacity scenarios.

Huawei OptiXtrans E9624 Product Datasheet

Huawei Optical Transport Network Solution Guide

Answer : A

TheSmartWiFifeature, part of Huawei's home network solutions, supports theSoftware-as-a-Service (SaaS)model. This allows service providers to offer managed Wi-Fi services to customers without requiring them to purchase or maintain the underlying hardware and software infrastructure.

In the SaaS model, the SmartWiFi platform is hosted in the cloud, enabling centralizedmanagement, real-time monitoring, and automatic updates. This approach simplifies deployment, reduces costs, and ensures scalability for large-scale deployments.

Huawei SmartWiFi Solution Guide

Cloud-Based Network Management Best Practices

Answer : A

The statement isTrue. TheHuawei EA5800 OLTemploys adistributed architectureto deliver superior performance and scalability. In a distributed architecture, processing tasks are divided among multiple components, reducing bottlenecks and improving overall system efficiency. This design allows the EA5800 to handle high-density subscriber traffic with low latency and high reliability, making it ideal for carrier-grade deployments.

Key benefits of the distributed architecture include:

High Performance Switching:Supports large-scale data forwarding with minimal delay.

Scalability:Easily accommodates additional subscribers and services.

Redundancy:Enhances fault tolerance and network availability.

Huawei EA5800 OLT Product Documentation

Huawei GPON Technology White Paper

Answer : A, B, C, D, E

TheNCE-T (Network Cloud Engine - Transport)is a comprehensive platform for managing optical transport networks. Its key highlights include:

Visualized Bandwidth Resources:Provides real-time visibility into network bandwidth usage, enabling efficient resource allocation.

Optical VPN (OVPN):Supports virtual private networks over optical transport networks, ensuring secure and isolated connectivity for different tenants.

Optical Latency Map:Displays end-to-end latency across the network, helping optimize performance for latency-sensitive applications.

Optical Service Provisioning:Automates the provisioning of optical services, reducing manual intervention and speeding up deployment.

CPE Plug and Play:Simplifies the deployment of customer premises equipment (CPE) by enabling zero-touch provisioning.

These features make the NCE-T a powerful tool for managing modern optical networks.

Huawei NCE-T Product Documentation

Huawei Optical Transport Network Solution Guide

Answer : A

TheNCE-T (Network Cloud Engine - Transport)follows a licensing model that includes both apermanent licenseand anSNS (Software Support and Services)annual fee. Here's how it works:

Permanent License:Grants access to the core features and functionalities of NCE-T indefinitely. This ensures long-term usability without recurring costs for the base software.

SNS Annual Fee:Covers ongoing support, software updates, bug fixes, and technical assistance. Customers must renew this annually to stay current with the latest enhancements and receive priority support.

This hybrid model is common in enterprise-grade software solutions, balancing upfront investment with ongoing operational costs.

Huawei NCE-T Licensing Guide

Huawei Software Support and Services (SNS) Documentation