Huawei H19-315 HCSA-Presales-Transmission & Access Exam Practice Test

Answer : B

TheMS-OTN (Multi-Service Optical Transport Network)is specifically designed to support multiple types of services and protocols, including:

OTN (Optical Transport Network):Provides high-capacity transport for long-haul andmetro networks.

SDH (Synchronous Digital Hierarchy):Supports legacy TDM-based services.

PKT (Packet):Enables packet-based services such as Ethernet and IP/MPLS.

MS-OTN integrates these technologies into a single platform, allowing service providers to converge multiple services onto a unified infrastructure. This flexibility makes MS-OTN ideal for modernizing existing networks while supporting future growth.

The statement that MS-OTN 'can't support OTN, SDH, and PKT' is therefore incorrect.

ITU-T G.709 Standard - OTN Specifications

Huawei MS-OTN Solution Guide

Answer : B, D, E

TheOptiXtrans DC908supports multiple management systems to ensure efficient operation and monitoring. Here's an analysis of each option:

NCE-T Lite:The DC908 does not supportNCE-T Lite, as this is a simplified version of the Network Cloud Engine (NCE) designed for smaller-scale deployments.

CLI (Command-Line Interface):The DC908 supports CLI for advanced configuration and troubleshooting tasks.

eSight:While eSight is a powerful network management system, it is not typically used for managing the DC908. Instead, the DC908 relies on NCE or WebGUI.

WebGUI:The DC908 provides aWeb-based Graphical User Interface (WebGUI)for intuitive and user-friendly management.

NCE (Network Cloud Engine):The DC908 integrates withNCEfor centralized control, automation, and intelligent O&M capabilities.

Thus, the correct answers areB (CLI), D (WebGUI), and E (NCE).

Huawei OptiXtrans DC908 Product Documentation

Huawei NCE and WebGUI Management Guide

Answer : A, B, C, D, E

All the options are correct. TheNCE-T (Network Cloud Engine for Transport)offers a comprehensive suite of features to enhance optical transport network management and service delivery. Here's a breakdown of each highlight:

Visualized Bandwidth Resources:

Provides a graphical representation of bandwidth utilization across the network.

Enables operators to identify bottlenecks, optimize resource allocation, and plan capacity upgrades.

Optical VPN (OVPN):

Creates dedicated virtual paths (hard pipes) for specific services or customers, ensuring isolation and security.

Ideal for applications like financial trading, government communications, and enterprise connectivity.

Optical Service Provisioning:

Automates the provisioning of optical services, reducing manual intervention and speeding up service delivery.

Supports diverse services like OTN, Ethernet, and SDH.

CPE Plug and Play:

Simplifies the deployment of customer premises equipment (CPE) by automating configuration and activation.

Reduces installation time and operational costs, especially for large-scale rollouts.

Optical Latency Map:

Provides real-time visualization of latency across the network.

Helps operators optimize routing for low-latency applications like cloud computing, AI, and 5G backhaul.

These features collectively enhance the efficiency, reliability, and profitability of optical transport networks.

Huawei NCE-T Product Documentation

ITU-T G.709 Standards for OTN

Answer : A, B, C, E

TheFlex-PON boardsupports multiple PON technologies, including:

GPON:Gigabit Passive Optical Network, widely used for residential and small business applications.

XG-PON:10G Asymmetric Passive Optical Network, offering higher upstream and downstream bandwidths.

XGS-PON:10G Symmetric Passive Optical Network, providing equal upstream and downstream speeds.

Combo PON:Combines GPON and XG(S)-PON on the same port, enabling seamless upgrades from GPON to XG(S)-PON without replacing hardware.

The only option not supported by Flex-PON isXG-PON Combo, as 'Combo' typically refers to the integration of GPON and XG(S)-PON, not just XG-PON alone.

Huawei Flex-PON Technology White Paper

ITU-T G.984.x and G.988 Standards for PON

Answer : A

TheEA5800-X2is a compact Optical Line Terminal (OLT) designed for small and medium-sized networks. One of its key features is the support fordual AC input interfaces, which enhances power redundancy and reliability. This ensures uninterrupted operation even if one power source fails, making it suitable for critical network environments.

Dual AC input is particularly important in scenarios where high availability is required, such as enterprise campuses, hospitals, and remote areas.

Huawei EA5800-X2 Product Datasheet

Huawei OLT Deployment Guide

Answer : A, B, C, D

Wavelength Division Multiplexing (WDM) systems use different types of sites to manage signal transmission and amplification across long distances. These include:

OLA (Optical Line Amplifier):Amplifies optical signals to compensate for losses over long distances.

OTM (Optical Terminal Multiplexer):Located at the endpoints of the WDM system, it multiplexes and demultiplexes wavelengths.

REG (Regenerator):Regenerates optical signals to restore their quality after significant attenuation.

OADM (Optical Add-Drop Multiplexer):Adds or drops specific wavelengths at intermediate points without affecting others.

Each type of site plays a critical role in ensuring efficient and reliable operation of WDM networks.

ITU-T G.694 Standard - WDM Architecture

Huawei WDM Solution Guide

Answer : A, B, C

Optical modules are categorized based on their transmission distance and power budget. The most commonly used classes in commercial deployments are:

Class B+:Supports distances up to 20 km and is widely used in urban and suburban areas.

Class C+:Supports distances up to 40 km and is suitable for medium-range deployments.

Class D:Supports distances up to 60 km and is ideal for long-haul connections in remote areas.

ClassesEandFare either outdated or not commercially viable due to their limited use cases.

ITU-T G.984 Standard - Optical Module Specifications

Huawei Optical Module Product Guide