Pass the Huawei HCPA-Transmission&Access H19-315 Questions and answers with ExamsMirror

TheFTTH (Fiber-to-the-Home)network consists of several key components that work together todeliver high-speed connectivity to end-users:

ONU/ONT (Optical Network Unit/Terminal):Customer-side device that converts optical signals into electrical signals for end-user devices.

OLT (Optical Line Terminal):Central device located at the service provider's premises, managing communication with multiple ONUs.

Splitter:Passive optical device that divides the signal from the OLT into multiple paths for distribution to ONUs.

NMS (Network Management System):Software platform (e.g., eSight) for centralized monitoring and management of the FTTH network.

ODF (Optical Distribution Frame):Infrastructure component used for organizing and connecting optical fibers.

Each of these components plays a critical role in ensuring efficient and reliable FTTH deployments.

References:

ITU-T G.984 Standard - FTTH Architecture

Huawei FTTH Solution Guide

TheMS-OTN (Multi-Service Optical Transport Network)is a versatile technology designed to support multiple types of services and protocols. Here’s an analysis of each statement:

Statement A:Not all models in the OSN 1800 series (e.g., OSN 1800 I) fully support MS-OTN. Only higher-end models like the OSN 1800V and OSN 1800 II provide comprehensive MS-OTN capabilities.

Statement B:MS-OTN supportsODUk (Optical Channel Data Unit)cross-connections, enabling efficient grooming and transport of traffic at various granularities.

Statement C:MS-OTN integratesSDH,PKT (Packet), andOTNservices into a singleplatform, making it ideal for converged networks.

Statement D:MS-OTN stands forMulti-Service Optical Transport Network, highlighting its ability to handle diverse traffic types.

Thus, statements B, C, and D are correct.

References:

ITU-T G.709 Standard - OTN Specifications

Huawei MS-OTN Solution Guide

Campus OptiX (POL) saves investment in bothCapex (Capital Expenditure)andOpex (Operational Expenditure). Specifically:

Capex Savings:POL reduces costs associated with active equipment (e.g., switches, routers), cabling, and construction by using passive optical splitters and a simplified architecture.

Opex Savings:POL lowers operational costs due to its centralized management, reduced power consumption, and lower maintenance requirements compared to traditional Ethernet-based LANs.

Option Dis incorrect because it excludes savings from active equipment, which is a significant cost component in traditional networks.

The correct answer isN402. TheN402 boardis specifically designed to support400G per wavelengthtransmission, making it ideal for high-capacity optical networks.

Key features of the N402 board include:

High-Speed Transmission:Supports data rates up to 400G per wavelength, enabling efficient traffic aggregation in backbone and core networks.

Advanced Modulation:Uses modulation schemes like DP-16QAM (Dual Polarization 16 Quadrature Amplitude Modulation) to achieve high spectral efficiency.

Flexibility:Compatible with various network architectures, including OTN, WDM, and SDH.

Scalability:Can be integrated into existing networks to boost capacity without requiring a complete overhaul.

Other options:

N220:Typically supports lower data rates (e.g., 100G).

N502:Designed for mid-range applications, not 400G.

N602:Focuses on access networks rather than high-speed backbone transmission.

The correct answer isFiber Doctor. TheFiber Doctorfeature is specifically designed to monitor the status of optical fibers and quickly identify fault points in the network.

Here’s how Fiber Doctor works and why it’s essential:

Real-Time Monitoring:Continuously monitors fiber health, detecting issues like attenuation, breaks, or degradation.

Fault Localization:Uses advanced algorithms to pinpoint the exact location of faults, reducing the time and effort required for troubleshooting.

Proactive Maintenance:Identifies potential issues before they impact service, enabling preventive maintenance and minimizing downtime.

Visualization:Provides a graphical representation of the fiber network, making it easier for operators to understand and address problems.

Other options:

Optical Doctor:Focuses on optimizing optical signal quality but does not specialize in faultlocalization.

Service Doctor:Monitors service performance (e.g., latency, packet loss) rather than physical fiber status.

Wavelength Doctor:Ensures proper wavelength allocation in WDM systems but does not monitor fiber health.

The statement isTrue. TheOptiXtrans E9600 seriesis a versatile optical transmission platform that can be deployed in various industries, includingGrid, Traffic, ISP, and Safe Cityapplications.

Here’s how the E9600 series supports these scenarios:

Grid:Provides reliable communication for smart grid operations, including SCADA systems and substation automation.

Traffic:Enables mission-critical communications for intelligent transportation systems (ITS), such as traffic signaling and toll collection.

ISP:Supports high-capacity backbone connectivity for delivering broadband, IPTV, and cloud services.

Safe City:Facilitates video surveillance backhaul, enabling real-time monitoring and analysis for public safety.

The E9600 series’ flexibility, scalability, and support for multiple technologies (e.g., OTN, SDH, Ethernet) make it suitable for diverse use cases across industries.

The statement isFalse. While Huawei, NOKIA, ZTE, and FiberHome are indeed major vendors of Optical Line Terminals (OLTs),Ciscois not traditionally known as a primary OLT vendor. Cisco focuses more on enterprise networking solutions like routers, switches, and Wi-Fi systems rather than passive optical network (PON) equipment.

The leading OLT vendors in the market are:

Huawei:Dominates the global OLT market with advanced GPON, XG(S)-PON, and Combo PON solutions.

NOKIA:Offers robust PON solutions through its Alcatel-Lucent subsidiary.

ZTE:Provides cost-effective PON solutions for both carriers and enterprises.

FiberHome:Specializes in PON and fiber optic technologies.

Type B Protectionin GPON networks refers to link-layer redundancy, where two independent fiber paths are used to connect an ONU to the OLT. In the event of a fiber failure, the system automatically switches to the backup path.

Theminimum protection switching timefor Type B protection is50 ms, ensuring minimal disruption to services. This rapid switching time is critical for maintaining high availability and reliability in mission-critical applications.

References:

ITU-T G.984 Standard - GPON Protection Mechanisms

Huawei GPON Technical Documentation

TheOptiXtrans DC908is a highly compact and efficient data center interconnect (DCI) solution. To deploy an8x200G (2x100GE)WDM system, only1 chassisis required.

Key reasons:

High Integration:The DC908 supports up to 800G per wavelength and integrates multiple functions into a single 2U chassis.

Scalability:A single chassis can handle the specified capacity (8x200G or 2x100GE) without requiring additional hardware.

Plug-and-Play Design:Simplifies deployment and reduces the need for multiple chassis.

Using more than one chassis would be unnecessary for this configuration, making1 chassisthe correct answer.

References:

Huawei OptiXtrans DC908 Deployment Guide

Huawei DCI Solution Best Practices

TheeSightoffering includes both the software and hardware components required for network management. Specifically, when quoting eSight, the package typically includes:

TheeSight software, which provides comprehensive network management capabilities.

Thehardware server(e.g., Huawei FusionServer or TaiShan Server) on which the software is deployed.

Options like "Network Cloud Engine-FAN" and "NCE_FusionCompute" are unrelated to eSight, while "eSight Outsourcing" refers to managed services rather than a hardware-inclusive package.

References:

Huawei eSight Product Documentation

Huawei Network Management Solution Guide