Huawei H19-315 Practice Exam Questions & Answers

7 Free Questions · Last reviewed: October 14, 2026 · Prepared & Reviewed by the ValidExamDumps Editorial Team

Exam Facts

Huawei H19-315 Exam Details

Key details for this exam, checked against the published exam outline

107 Practice Questions (Our Bank)
Exam Code
H19-315
Full Name
HCSA-Presales-Transmission & Access
Issuing Body
Huawei
Question Format (Our Bank)
Multiple Choice
Delivery
Online proctored or at a Pearson VUE test centre
Practice Questions

Free H19-315 Practice Questions

Each question shows the correct answer and an explanation of why it is right

VA
ValidExamDumps Editorial Team Every question and its answer is checked by our H19-315 exam preparation team, who also write the explanation shown with each one. How we research and review these pages

EA5800-X2 is able to provide dual AC input interface.

Correct Answer: A
Explanation

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

E2E OTN Hard Pipes Provide High-Quality Services (High Availability, Low Latency, Zero Packet Loss).

Correct Answer: A
Explanation

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

Huawei, as an industry leader, has the No. 1 ITU patent contribution.

Correct Answer: A
Explanation

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.


ITU Patent Contribution Reports

Huawei Annual Innovation Report

Which board on OptiXtrans DC908 can support 400G/A?

Correct Answer: C
Explanation

The correct answer isMD02A. TheMD02A boardin theOptiXtrans DC908platform supports400G per wavelength, enabling high-capacity data transmission for backbone and core networks.

Key features of the MD02A board include:

High-Speed Transmission:Supports data rates up to400G per wavelength, leveraging advanced modulation techniques like DP-16QAM.

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

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

Efficiency:Optimizes spectral efficiency, maximizing the utilization of available fiber resources.

Other options:

MD02:An earlier version of the board, typically supporting lower data rates.

MS04:Focuses on mid-range applications, not 400G.

N602:Designed for access networks rather than high-speed backbone transmission.


Huawei OptiXtrans DC908 Product Documentation

ITU-T G.709 Standards for OTN

Which of the following are the values that Campus OptiX (POL) brings to customers?

Correct Answer: A, B, C, D
Explanation

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.


Huawei Campus OptiX Solution Guide

POL Deployment Best Practices

OptiXtrans DC908 product is usually used in backbone long-distance networks.

Correct Answer: A
Explanation

The statement isTrue. TheOptiXtrans DC908is primarily designed forbackbone long-distance networks, where high capacity, low latency, and reliability are critical.

Here's why the DC908 is well-suited for backbone networks:

High Capacity:The DC908 supports up to38.4 Tbps per fiber pair, making it ideal for transporting massive volumes of data over long distances.

Long-Distance Transmission:Leveraging advanced technologies likeEDFA (Erbium-Doped Fiber Amplifier)andRaman amplification, the DC908 can transmit data over distances exceeding1,000 kmwithout regeneration.

Low Latency:Designed for ultra-low latency, the DC908 ensures minimal delay for mission-critical applications like cloud computing, AI, and big data analytics.

Reliability:Features likeoptical protection switchingandhard pipe isolationensure uninterrupted service even in the event of failures.

While the DC908 can also be used for shorter distances (e.g., metro or regional networks), its primary application is inlong-haul backbone networksthat connect major cities, data centers, and international gateways.


Huawei OptiXtrans DC908 Product Documentation

ITU-T G.698 Standards for WDM

Which aspects does the Campus OptiX (POL) save investment from?

Correct Answer: C
Explanation

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.


Huawei Campus OptiX (POL) Solution White Paper

IEEE 802.3ah Standards for PON

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Study Guide

What the Huawei H19-315 Exam Covers

5 domains from the Huawei H19-315 exam outline, with approximate weightings. Every sample question above is tagged with the domain it comes from

Domain 1: Optical Network Fundamentals

Assesses core optical networking concepts, different fiber types, wavelength division multiplexing, and optical transmission systems. Learn to assess optical network needs and suggest suitable solutions including loss budgets, signal dispersion, and optical power management.

Sample questions from this domain above: Q1Q3Q4

Domain 2: Transport Network Technologies

Tests knowledge of SDH/SONET, Optical Transport Networks (OTN), Packet Transport Networks (PTN), and packet-based transport technologies. Develop skills in designing transport network structures for service providers with focus on network synchronization, protection strategies, and quality of service.

Sample questions from this domain above: Q2Q6

Domain 3: Access Network Solutions

Evaluates expertise in access technologies such as Passive Optical Networks (PON), xDSL, and FTTx frameworks. Learn to determine suitable access solutions for varying use cases including network topology planning, bandwidth allocation, and deployment of access nodes.

Sample question from this domain above: Q5

Domain 4: Network Management Systems

Measures competency in handling transmission network management platforms, monitoring tools, and maintenance protocols. Develop skills in deploying network management solutions with focus on fault identification, performance tracking, and network optimization strategies.

Domain 5: Service Planning and Design

Examines abilities in assessing client needs, crafting network designs, and formulating implementation strategies. Develop cost-efficient network proposals including capacity planning, strategies for network expansion, and detailed solution documentation.

Sample question from this domain above: Q7

FAQ

H19-315 Exam FAQ

Common questions about the exam itself

What background do I need before taking the H19-315 exam?
The H19-315 is designed for sales professionals and presales engineers working with Huawei transmission and access products. You should have basic familiarity with optical networking concepts and some experience in presales or technical sales roles, though there are no formal prerequisites listed by Huawei.
Which topic area in H19-315 is hardest and why?
Transport Network Technologies tends to be the most challenging domain because it requires understanding multiple complex protocols and design principles including SDH, SONET, OTN, and PTN simultaneously. Many candidates struggle to distinguish between when to apply each technology in different customer scenarios.
How long does it typically take to prepare for H19-315?
Most candidates with relevant presales or networking background need 4-6 weeks of focused study to prepare adequately for H19-315. If you are new to transmission and access concepts, plan for 8-12 weeks to build sufficient foundational knowledge.
What does exam day look like for H19-315?
You will take H19-315 either at a Pearson VUE test centre or via online proctoring depending on your location and preference. The exam consists of multiple choice questions and scenario-based items that simulate real presales decision-making situations.
What is the format and structure of the H19-315 exam questions?
The exam uses multiple choice questions to test recall of optical principles and terminology, and scenario-based items that present real-world customer requirements such as coverage gaps or capacity constraints where you select the appropriate technology or design approach.
How does H19-315 relate to other Huawei presales certifications?
H19-315 focuses on transmission and access presales skills and is part of the HCSA track. It sits between entry-level HCIA presales certifications and more advanced specialist certifications, positioning it as a foundational credential for presales engineers who want to deepen expertise in optical and access technologies.
What job roles does the H19-315 certification prepare you for?
H19-315 prepares you for roles including Presales Engineer for Optical and Access, Transmission Network Engineer, Access Network Engineer, Solution Architect for Optical and Access networks, and Technical Consultant focused on Huawei networking solutions.
Can I retake H19-315 if I fail on my first attempt?
Yes, you can retake H19-315, though Huawei typically enforces a waiting period between attempts. Check with Pearson VUE when scheduling your test for specific retake policies and any associated fees.
How long does the H19-315 Huawei Certified Sales Associate certification stay valid?
Like other Huawei certifications, H19-315 validity depends on the specific version and renewal requirements set by Huawei. You will need to renew your certification periodically to keep it current as Huawei updates its technology and product portfolio.