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

TheOptiXtrans DC908is specifically designed fordata center interconnect (DCI)applications, not backbone long-distance networks. Its primary use cases include:

Connecting geographically distributed data centers for cloud services, disaster recovery, and load balancing.

Supporting short-reach, high-capacity links (e.g., metropolitan areas) rather than ultra-long-haul backbone networks.

For long-distance backbone networks, Huawei offers other products like theOptiXtrans E9600 seriesorOSN 9800 series, which are optimized for higher capacities and longer distances.

References:

Huawei OptiXtrans DC908 Product Datasheet

Huawei DCI vs. Backbone Network Deployment Guide

The correct answer is1. TheOptiXtrans DC908is designed to support high-density configurations, allowing an8x200G (2x100GE)WDM system to be deployed using justone chassis.

Here’s a breakdown of how this is achieved:

High Integration:The DC908 integrates multiple components, such as optical modules, amplifiers, and control units, into a single compact2U chassis. This eliminates the need for additional hardware or external devices.

Scalability:The DC908 supports up to8 wavelengths per fiber pair, each operating at200G. This means that all 8x200G channels can be accommodated within a single device.

Service Aggregation:Each 200G wavelength can carry multiple 100GE services, enablingefficient aggregation of traffic. For example, two 100GE services can be mapped onto a single 200G wavelength.

Space Efficiency:By consolidating everything into one chassis, the DC908 minimizes rack space requirements, making it ideal for data centers and edge locations where space is limited.

Other options:

2, 3, or 4 chassis:These would only be necessary for extremely large-scale deployments or if additional redundancy were required. However, for an 8x200G system, a single chassis is sufficient.

This compact design highlights the DC908’s efficiency and cost-effectiveness for modern optical networks.

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.

POL (Passive Optical LAN)refers to the application of Passive Optical Network (PON) technology in enterprise campus environments. It is a modern networking solution that replaces traditional copper-based Ethernet networks with fiber optics, offering higher bandwidth, longer reach, and lower maintenance costs. POL is widely used in scenarios such as education, healthcare, hospitality, and smart cities.

The other options—Procurement on Line, Port of Loading, and Point of Load—are unrelated to optical networking and refer to entirely different concepts.

References:

ITU-T G.984 Standard - PON Technology

Huawei Campus OptiX Solution Guide

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

The statement isFalse. While theOptiXtrans E9600andOSN 1800are part of Huawei’s optical transmission portfolio, the1X908andE5800are not included under the OptiXtrans product line.

Here’s a clarification:

OptiXtrans E9600:A series of optical transmission devices designed for backbone, metro, and access networks.

OSN 1800:A compact optical transport platform for enterprise and carrier-grade applications.

1X908:This is not a recognized product in Huawei’s optical transmission portfolio.

E5800:Refers to a different product line, typically associated with access networks rather than optical transmission.

The confusion may arise from overlapping product names, but the OptiXtrans series specifically focuses on optical transmission solutions.

TheFTTx (Fiber-to-the-x)solution is a versatile technology that enables the delivery of multiple services over a single fiber-optic infrastructure. The key services provided by FTTx include:

High-Speed Internet:Delivers broadband connectivity to homes, businesses, and institutions.

Home-WiFi:Supports wireless networking within premises using Wi-Fi-enabled ONTs or routers.

Telephone:Provides Voice over IP (VoIP) services for telephony applications.

IPTV:Enables high-quality video streaming for entertainment and educational purposes.

FTTx solutions are widely used in Fiber-to-the-Home (FTTH), Fiber-to-the-Building (FTTB), and Fiber-to-the-Curb (FTTC) deployments, offering converged services to meet diverse customer needs.

References:

Huawei FTTx Solution Guide

ITU-T G.984 Standard - FTTx Applications

MS-OTN (Multi-Service Optical Transport Network)is a versatile technology that supportsmultiple types of networks, including:

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

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

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

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.

References:

ITU-T G.709 Standard - OTN Specifications

Huawei MS-OTN Solution Guide

The statement isTrue. TheFlex-PON boardis a versatile solution designed to support multiple PON technologies, including:

GPON (Gigabit Passive Optical Network):Suitable for residential and small businessapplications.

XG(S)-PON (10G Symmetric/Asymmetric PON):Provides higher bandwidth for demanding applications like enterprise services and 5G backhaul.

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

This flexibility makes Flex-PON boards ideal for operators looking to future-proof their networks while supporting legacy GPON services.

The statement isTrue. TheNCE-FANplatform is specifically designed to manageOLT (Optical Line Terminal)series devices, providing centralized control and monitoring for optical access networks.

Key capabilities of NCE-FAN in managing OLT devices include:

Configuration Management:Automates the provisioning and configuration of OLTs, reducing manual errors and speeding up deployments.

Performance Monitoring:Tracks key metrics like bandwidth utilization, latency, and error rates to ensure optimal network performance.

Fault Management:Detects and resolves issues proactively, minimizing service disruptions.

Service Orchestration:Coordinates the delivery of services like IPTV, VoIP, and broadband internet across multiple OLTs.

By integrating OLT management into a unified platform, NCE-FAN simplifies operations and enhances the scalability of optical access networks.