Free H19-315 Practice Test Questions and Answers (2026)

In asafe city scenario, outdoor monitoring is a critical requirement. Huawei recommends

usingoutdoor monitoring ONTslike theEG8084PandPowerCube500for such deployments. These

devices are ruggedized and designed to operate in harsh environmental conditions, making them

ideal for outdoor surveillance applications.

While indoor monitoring ONTs and pre-connection ODN are useful in other scenarios, they are not

specifically optimized for outdoor safe city deployments. Similarly, small and medium OLTs like the

EA5801 and EA5800-X2 are suitable for smaller-scale networks but are not directly related to the safe

city use case.

Reference:

Huawei Safe City Solution Guide

Campus OptiX (POL) Deployment Scenarios

The correct definition ofPOL (Passive Optical LAN)is that it is the application of PON (Passive Optical

Network) technology in the enterprise campus environment. POL leverages the advantages of fiber

optics, such as high bandwidth, long transmission distances, and low maintenance costs, to provide a

converged network solution for enterprises. It replaces traditional copper-based LANinfrastructure

with an all-optical network, supporting services like data, voice, and video over a single fiber.

Procurement on Line, Purchasing Online System:This is unrelated to POL and refers to online

procurement systems.

Point of Load:Refers to power electronics and is unrelated to optical networks.

Port of Loading:A logistics term referring to the location where goods are loaded onto a carrier,

unrelated to POL.

Reference:

Huawei Campus OptiX (POL) Solution White Paper

IEEE 802.3ah Standards for PON

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.

Reference:

ITU-T G.709 Standard - OTN Specifications

Huawei MS-OTN Solution Guide

TheOptiXtrans DC908is a cutting-edge data center interconnect (DCI) solution with several key

highlights:

High Security:Provides end-to-end encryption and physical isolation to protect sensitive data.

Intelligent O&M:Leverages AI-driven analytics and automation for efficient network management.

Simplified Provisioning:Enables plug-and-play deployment and automated service provisioning,

reducing operational complexity.

Ultra Broadband & High Integration:Supports up to 800G per wavelength and integrates multiple

functions into a compact 2U form factor, maximizing capacity and efficiency.

These features make the DC908 ideal for modern data center interconnect scenarios.

Reference:

Huawei OptiXtrans DC908 Product Documentation

Huawei DCI Solution Guide

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.

Reference:

ITU-T G.694 Standard - WDM Architecture

Huawei WDM Solution Guide

Huawei is a global leader in telecommunications and networking technologies, and it has

consistently rankedNo. 1 in ITU patent contributions. The International Telecommunication Union

(ITU) is a specialized agency of the United Nations responsible for standardizing global

telecommunications technologies. Huawei's significant contributions to ITU standards, particularly in

areas like 5G, optical transport, and PON technologies, reflect its commitment to innovation and

leadership in the industry.

These contributions not only demonstrate Huawei's technical expertise but also ensure that its

products are aligned with the latest global standards, providing customers with cutting-edge

solutions.

Reference:

ITU Patent Contribution Reports

Huawei Annual Innovation Report

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.

Reference:

ITU-T G.984 Standard - FTTH Architecture

Huawei FTTH Solution Guide

When deployingNCE-FAN Liteon aBare Metalinfrastructure, Huawei recommends using theTaiShan

Server, which is part of its ARM-based server portfolio. In this scenario, the correct offering to select

isNetwork Cloud Engine-FAN Lite HW.

The "HW" suffix indicates that the solution includes hardware components (e.g., the TaiShan Server)

in addition to the software. This is ideal for customers who prefer an integrated hardware and

software package rather than deploying the software on their own servers.

Other options like "Network Cloud Engine-FAN Lite" or "NCE_FusionCompute" are software-only

solutions and do not include the TaiShan Server.

Reference:

Huawei NCE-FAN Lite Deployment Guide

TaiShan Server Product Documentation

POL (Passive Optical LAN) is a solution designed for enterprise campus environments, leveraging

PON technology to provide converged voice, data, and video services. While POL is highly versatile

and can be deployed in various scenarios such as education, healthcare, hospitality, and office

environments, itcannot always be sold independentlyin all office scenarios.

The deployment of POL depends on factors such as the existing infrastructure, customer

requirements, and the scale of the network. In some cases, additional components like Wi-Fi access

points, routers, or switches may be required to complement the POL solution. Therefore, POL is

typically sold as part of an integrated solution tailored to the customer's specific needs.

Reference:

Huawei Campus OptiX Solution Guide

POL Deployment Best Practices

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.

Reference:

Huawei OptiXtrans E9624 Product Datasheet

Huawei Optical Transport Network Solution Guide

TheGPON (Gigabit Passive Optical Network)standard, defined by the ITU-T G.984 specification,

supports asymmetric data rates for upstream and downstream traffic. Specifically:

Downstream Bitrate:2.5 Gbps

Upstream Bitrate:1.25 Gbps

The higher downstream bitrate reflects the typical usage pattern of internet services, where users

consume more data (e.g., streaming videos) than they upload. GPON uses Time Division Multiplexing

(TDM) to manage data transmission between the OLT and multiple ONUs.

For higher bandwidth requirements, advanced standards like XG-PON (10 Gbps downstream) or NG-

PON2 (multi-wavelength support) are available.

Reference:

ITU-T G.984 Standard - GPON Architecture

Huawei GPON Technical Documentation

TheOSN 1800 Vis a compact and versatile optical transport platform designed for metro and access

networks. Let’s analyze each statement:

Statement A:The OSN 1800 V supports700G OTNcapacity, making it suitable for high-bandwidth

applications.

Statement B:It providesrich interfaces, including Ethernet, SDH, and OTN, ensuring flexibility for

diverse use cases.

Statement C:The OSN 1800 Vis available in a 19-inch cabinet, making it easy to deploy in data centers

or telecom rooms. This statement is incorrect.

Statement D:It supports bothAC and DC power inputswith1+1 redundancy, ensuring high reliability.

Thus, the incorrect statement isC.

Reference:

Huawei OSN 1800 V Product Datasheet

Huawei Metro & Access WDM Solution Guide

Huawei has consistently maintained theNo. 1 global market sharein the field ofoptical transmission

and access networksfor over a decade. This leadership position is attributed to several factors:

Innovation Leadership:Huawei invests heavily in R&D, driving advancements in technologies like

OTN, WDM, PON, and MS-OTN.

Comprehensive Portfolio:Its product portfolio spans from core backbone networks to metro, access,

and data center interconnect solutions.

Global Presence:Huawei serves customers across industries and regions, including telecom

operators, enterprises, and governments.

Industry Recognition:Reports from firms like Dell’Oro Group and Omdia consistently rank Huawei as

the top vendor in optical networking.

This sustained dominance underscores Huawei’s ability to deliver cutting-edge solutions that meet

evolving customer needs.

Reference:

Dell’Oro Group Optical Transport Market Report

Huawei Annual Innovation Report

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.

Reference:

Huawei OptiXtrans DC908 Deployment Guide

Huawei DCI Solution Best Practices

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.

Reference:

Huawei SmartWiFi Solution Guide

Cloud-Based Network Management Best Practices

Huawei offers a diverse range of Optical Line Terminal (OLT) models to cater to various network

requirements. As of the latest product portfolio, Huawei's OLT family includesfive primary models:

MA5800 Series:High-density OLT for large-scale deployments (e.g., MA5800-X17,MA5800-X7).

EA5800 Series:Compact OLT for small and medium-sized networks (e.g., EA5800-X2).

OptiXstar Series:Specialized OLT for enterprise and campus networks.

SmartAX Series:Integrated OLT for multi-service access.

OSN Series:Advanced OLT for converged transport and access networks.

Each model is designed to address specific use cases, from large-scale service provider networks to

small enterprise deployments.

Reference:

Huawei OLT Product Portfolio

Huawei Transmission & Access Solution Guide

TheOptiXtrans DC908is specifically designed forData Center Interconnect (DCI)applications. Its key

features align perfectly with the requirements of modern DCI scenarios:

High Capacity:Supports up to 800G per wavelength, enabling ultra-high-speed connectivity between

data centers.

Compact Design:The 2U form factor makes it ideal for space-constrained environments.

Low Latency:Optimized for minimal delays, critical for applications like cloud computing and disaster

recovery.

Simplified Deployment:Plug-and-play functionality reduces operational complexity.

While other Huawei products (e.g., OptiXtrans E9600) are designed for backbone or metro networks,

the DC908 is tailored exclusively for DCI.

Reference:

Huawei OptiXtrans DC908 Product Documentation

Huawei DCI Solution Guide

TheCampus OptiX (POL)solution is primarily deployed in scenarios where fiber-to-the-premises

(FTTP) is required for high-speed connectivity. The main sale scenarios include:

Room-like Scenarios:POL is widely used in education (classrooms, dormitories), hotels (guest rooms),

hospitals (patient rooms), and apartments, where individual units require dedicated connectivity.

Video Backhaul Scenarios:POL supports video surveillance and backhaul applications in safe city

projects, parks, and industrial zones, ensuring reliable and high-quality video transmission.

While POL can technically support office and Wi-Fi backhaul scenarios, these are not its primary

focus. Instead, these scenarios are better addressed by other Huawei solutions like Wi-Fi 6 or

enterprise switches.

Reference:

Huawei Campus OptiX Solution Guide

POL Deployment Scenarios

TheOptiXtrans product familyprimarily includes advanced optical transport platforms such as

theE9600 series, which is designed for high-capacity and long-haul networks. However, theOSN

1800,DC908, andE5800are part of different product lines:

OSN 1800:Belongs to Huawei's MS-OTN (Multi-Service Optical Transport Network) portfolio,

targeting metro and regional networks.

DC908:A data center interconnect (DCI) solution optimized for short-reach, high-capacity links

between data centers.

E5800:Not a recognized product in Huawei's optical transport portfolio.

Thus, the statement is incorrect because not all the listed products belong to the OptiXtrans family.

Reference:

Huawei OptiXtrans Product Portfolio

Huawei Optical Transport Network Solution Guide

Campus OptiX (POL) delivers significant value to customers through the following key benefits:

Simple Architecture:POL simplifies network design by using a single fiber infrastructure to deliver

multiple services (voice, data, video), reducing complexity and cost.

Smart O&M:With centralized management tools like eSight, POL enables efficient monitoring,

troubleshooting, and automation of network operations.

Easy to Evolve:POL supports future-proof technologies like XG-PON and NG-PON2, allowing seamless

upgrades to higher bandwidths.

High Reliability:The passive nature of POL (no active components in the ODN) ensures high reliability

and low maintenance requirements.

These advantages make POL an attractive solution for enterprise campuses and other large-scale

deployments.

Reference:

Huawei Campus OptiX Solution Guide

POL Deployment Best Practices