Huawei H19-315 Practice Test - Questions Answers

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.

Huawei OSN 1800 V Product Datasheet

Huawei Metro & Access WDM Solution Guide

TheOSN 902is specifically designed for deployment inoutdoor cabinets, making it ideal for remote and harsh environments. Key features include:

Compact form factor and ruggedized design to withstand extreme temperatures and weather conditions.

Low power consumption and passive cooling, eliminating the need for air conditioning in outdoor cabinets.

Support for long-distance fiber connectivity, making it suitable for edge and access networks.

Other options likeOSN 9800,OSN 8800, andOSN 1800are typically deployed in indoor environments such as data centers or telecom rooms.

Huawei OSN 902 Product Datasheet

Huawei Outdoor Deployment Best Practices

TheOSN 1800 Vis a compact device designed for outdoor and edge deployments. Unlike other models in the OSN 1800 series, itcannot be mounted in a standard 19-inch cabinetdue to its unique form factor and intended use case.

Here's an analysis of the other options:

OSN 1800 I:Can be mounted in a 19-inch cabinet and is commonly used in small-scale deployments.

OSN 9800 U32:A high-end platform designed for core networks, typically deployed in data centers or telecom rooms with 19-inch racks.

OSN 1800 II:Supports 19-inch cabinet mounting and is used in metro and regional networks.

Thus, theOSN 1800 Vis the correct answer.

Huawei OSN 1800 Series Product Documentation

Huawei Cabinet Mounting Guidelines

GPON (Gigabit Passive Optical Network) does not use AES-128 encryption for downstream traffic. Instead, GPON uses AES-128 encryptiononly for upstream trafficto ensure data security between the Optical Network Unit (ONU) and the Optical Line Terminal (OLT). Downstream traffic in GPON is broadcasted to all ONUs, and encryption is not applied because the data is intended for multiple users. The encryption key is dynamically managed by the OLT and distributed securely to the ONUs.

This behavior is defined in theITU-T G.984 standard, which specifies the GPON architecture and security mechanisms. For downstream traffic, the security relies on higher-layer protocols (e.g., IPsec or application-level encryption).

ITU-T G.984 Standard - GPON Architecture and Security

Huawei GPON Technical Documentation

A Passive Optical Network (PON) system consists of three primary components:

OLT (Optical Line Terminal):The central device located at the service provider's premises. It connects to the core network and manages communication with multiple ONUs.

ONU (Optical Network Unit):The customer-side device located at the user's premises. It converts optical signals into electrical signals for end-user devices.

ODN (Optical Distribution Network):The passive infrastructure that includes optical fibers, splitters, and connectors to distribute signals between the OLT and ONUs.

WDM (Wavelength Division Multiplexing) is a technology used in optical networks but is not a basic component of a PON system. It is often used in advanced PON systems like XG-PON or NG-PON2 to separate upstream and downstream wavelengths.

ITU-T G.984 Standard - PON Architecture

Huawei PON System Design Guide

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.

Huawei Campus OptiX Solution Guide

POL Deployment Best Practices

The statement isTrue.End-to-End (E2E) OTN Hard Pipesare designed to deliver high-quality services with key attributes such ashigh availability, low latency, and zero packet loss.

Here's why E2E OTN Hard Pipes are critical for modern networks:

High Availability:OTN hard pipes provide dedicated bandwidth and redundancy mechanisms, ensuring uninterrupted service even during failures.

Low Latency:By using direct optical paths and minimizing processing delays, OTN hard pipes achieve ultra-low latency, which is essential for applications like financial trading and real-time control systems.

Zero Packet Loss:OTN hard pipes guarantee lossless transmission by isolating traffic and avoiding congestion, making them ideal for mission-critical applications.

These features make OTN hard pipes particularly valuable in industries like finance, healthcare, and utilities, where reliability and performance are paramount.

Huawei OTN Hard Pipe Technology White Paper

ITU-T G.709 Standards for OTN

TheOptiXtrans E9600 seriesis part of Huawei's advanced optical transmission portfolio, designed for high-capacity and long-haul transport networks. The series includes the following models:

OptiXtrans E9624:High-end model with a maximum cross-connect capacity of 24 Tbps per subrack, suitable for core networks.

OptiXtrans E9612:Mid-range model with a maximum cross-connect capacity of 12 Tbps per subrack, ideal for metro and regional networks.

OptiXtrans E9605:Compact model with a smaller footprint, designed for edge and access networks.

These models cater to different network requirements, from core to edge deployments, ensuring scalability and flexibility.

Huawei OptiXtrans E9600 Series Product Documentation

Huawei Optical Transport Network Solution Guide

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