Huawei H19-315 Study Guide Archives Updated on Jul 06, 2025 [Q49-Q70]

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Huawei H19-315 Study Guide Archives Updated on Jul 06, 2025

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Huawei, the company behind the H19-315-ENU exam, is a leading provider of telecommunication equipment and services in the world. The company has a strong presence in the transmission and access market and has been providing innovative solutions to its customers for many years. HCSA-Presales-Transmission & Access certification from Huawei is recognized globally and provides a competitive edge to the candidates who possess it.

Q49. The actual effective bandwidth of GPON down is about 2.3g. If all users under the single PON have opened a 1000M package, how many households can be supported?

Q50. What are the products that support the OTN architecture? (Multiple choice)

OSN 1800II

OSN 1800V

OSN 9800 U32

OSN 9800 UPS

OSN 9800 M24

Q51. The “IP+Light” fusion solution solution, what kind of component products include? (Multiple Choice)

OLT

ODN

ONU

ONT

Q52. What are the main problems faced by the traditional subway MTSP embedded RPR solution? (Multiple choice)

RPR supports a maximum bandwidth of 1.25G on a single ring, and the large bandwidth requirement is difficult to solve

Cannot communicate across the ring and the networking is limited

Does not support cross-board and cross-device protection

Q53. Huawei’s main product model on the power distribution network is:

MA5621

MA5616

HG8247

MA5633

Q54. Among the ultra-long-distance transmission characteristics of our OSN equipment, the 2.5G single-span optical power budget can reach to ( ) when Raman amplifiers are not used at present.

23dB

48dB

66dB

73Db

Q55. Huawei meets the multi-service access requirements of financial data centers through the rich service interfaces of transmission equipment.

TRUE

FALSE

Q56. Which of the following statements about OptiXtrans DC908 is correct?

OptiXtrans DC908 cannot be managed by NCE.

OptiXtrans DC908 is 2U high, which is able to install in 600mm deep rack.

OptiXtrans DC908 can support L2 function.

OptiXtrans DC908 is designed for the DCN application.

The correct answer isOptiXtrans DC908 is 2U high, which is able to install in 600mm deep rack.
Here’s an analysis of each option:
* A. OptiXtrans DC908 cannot be managed by NCE:This is incorrect. The DC908 is fully compatible with Huawei’sNCE (Network Cloud Engine)for centralized management, monitoring, and automation.
* B. OptiXtrans DC908 is 2U high, which is able to install in 600mm deep rack:This is correct. The DC908 has a compact2U form factor, making it ideal for space-constrained environments. Its shallow depth (compatible with 600mm racks) ensures flexibility in deployment, especially in data centers and edge locations.
* C. OptiXtrans DC908 can support L2 function:This is incorrect. The DC908 primarily focuses on Layer 1 (physical layer) and Layer 0 (optical layer) transport, such as OTN and WDM. It does not natively support Layer 2 (data link layer) functions like switching or routing.
* D. OptiXtrans DC908 is designed for the DCN application:This is incorrect. While the DC908 can be used for DCN (Data Communication Network) applications, its primary purpose isdata center interconnect (DCI)and high-capacity backbone transmission.

Q57. Which of the following are the main sale scenarios of the Campus OptiX (POL)?

Room-like scenarios, including education, hotel, medical, apartment

Video backhaul scenarios, including Safe City, park monitoring

Wi-Fi backhaul scenarios, including wireless campus, wireless office, wireless hotel

All office scenarios, including wired and wireless access

The correct answer isRoom-like scenarios, including education, hotel, medical, apartment. Campus OptiX (POL) is primarily designed for enterprise campus environments where high bandwidth, low latency, and simplified network architecture are required. Common scenarios include:
* Education:Connecting classrooms, dormitories, and administrative offices.
* Hotels:Providing high-speed internet and IPTV services to guests.
* Medical:Supporting hospital networks for patient care, imaging, and telemedicine.
* Apartments:Delivering triple-play services (data, voice, video) to residents.
While options like video backhaul and Wi-Fi backhaul are valid use cases for optical networks, they are typically associated with carrier-grade solutions rather than enterprise-focused Campus OptiX deployments.

Q58. The integration of power transmission and transformation integration transmission solutions does not include ().

Industry integration, integration of industry needs, such as 2M optical interface, 2M ASON

Communication technology integration, integration of communication technology development trends, such as SDH/OTN/PKT unified equipment

Client-side interface fusion, integrating low-speed interfaces such as traditional PCM equipment

Integration of advanced concepts and hotspots, such as 5G and WIFI6

Q59. Which of the following services can FTTx Solution provide?

High-Speed Internet

Home-WiFi

Telephone

IPTV

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

Q60. What are the components of 100G key technologies? (Multiple choice)

WDM side interface technology

OTN Processing Technology

Client-Side Interface Technology

Dispersion compensation technology

Q61. OptiXtrans products include: E9600, OSN 1800, DC908, and E5800.

True

False

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, and E5800are 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.
References:
* Huawei OptiXtrans Product Portfolio
* Huawei Optical Transport Network Solution Guide

Q62. The frame rate of ODU0 is 1.25Gbits/s, the frame rate of ODU1 is 2.5Gbits/s, and the frame rate of ODUflex is 40Gbits/s.

TRUE

FALSE

Q63. OLT EA5801 maximum support () business GPON port.

Q64. Which kinds of protection switching does the enhanced MSTP support? (Multiple choice)

SNCP

MSP

LSP 1+1/1:1

MPLS-TP ring network protection

Q65. Huawei use Huawei’s self-developed chips for the access to MA5800 series products.

TRUE

FALSE

Q66. What levels does the OTN backbone network in the power industry cover? (Multiple choice)

National dry

Division

Save money

A small number of cities

Q67. In Huawei Financial Data Center transmission schemes, which device has small volume, high integration, and unified platforms?

OSN 9800 UPS

OSN 1500

OSN 1800V

OSN 810

Q68. Which of the following ONUs can be connected below OLT EA5800? (Multiple Choice)

EG8040P

EG8080P

HG8310M

EA5821

Q69. AES-128 is the encryption algorithm used by GPON for downstream.

True

False

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).
References:
* ITU-T G.984 Standard – GPON Architecture and Security
* Huawei GPON Technical Documentation

Q70. What are the characteristics of the applicable scenarios of electrical layer ASON? (Multiple choice)

There are many super long spans

PMD major

Normally broken fiber

Requires a lot of relays

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