Huawei H19-315 Practice Exams
Last updated on Oct 21,2026- Exam Code: H19-315
- Exam Name: HCSA-Presales-Transmission & Access
- Certification Provider: Huawei
- Latest update: Oct 21,2026
Question #31
When quoting, which offering includes the hardware of eSight?
- A . Network Cloud Engine-FAN
- B . eSight Outsourcing
- C . eSight
- D . NCE_FusionCompute
Correct Answer: C
C
Explanation:
The eSightoffering includes both the software and hardware components required for network management. Specifically, when quoting eSight, the package typically includes:
The eSight software, which provides comprehensive network management capabilities.
The hardware server (e.g., Huawei FusionServer or TaiShan Server) on which the software is deployed.
Options like "Network Cloud Engine-FAN" and "NCE_FusionCompute" are unrelated to eSight, while "eSight Outsourcing" refers to managed services rather than a hardware-inclusive package.
Reference: Huawei eSight Product Documentation
Huawei Network Management Solution Guide
C
Explanation:
The eSightoffering includes both the software and hardware components required for network management. Specifically, when quoting eSight, the package typically includes:
The eSight software, which provides comprehensive network management capabilities.
The hardware server (e.g., Huawei FusionServer or TaiShan Server) on which the software is deployed.
Options like "Network Cloud Engine-FAN" and "NCE_FusionCompute" are unrelated to eSight, while "eSight Outsourcing" refers to managed services rather than a hardware-inclusive package.
Reference: Huawei eSight Product Documentation
Huawei Network Management Solution Guide
Question #32
Which of the following devices can be used in an outdoor cabinet?
- A . OSN 9800
- B . OSN 8800
- C . OSN 902
- D . OSN 1800
Correct Answer: C
C
Explanation:
The OSN 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 like OSN 9800, OSN 8800, and OSN 1800are typically deployed in indoor environments such as data centers or telecom rooms.
Reference: Huawei OSN 902 Product Datasheet
Huawei Outdoor Deployment Best Practices
C
Explanation:
The OSN 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 like OSN 9800, OSN 8800, and OSN 1800are typically deployed in indoor environments such as data centers or telecom rooms.
Reference: Huawei OSN 902 Product Datasheet
Huawei Outdoor Deployment Best Practices
Question #33
Which of the following are the advantages of an OSN 1800 used in the Grid industry?
- A . High Secure Hard Pipe
- B . Isolation Hard Pipe
- C . Built-in PCM
- D . MS-OTN
Correct Answer: A, B, C, D
A, B, C, D
Explanation:
All the options are correct. The Huawei OSN 1800offers several advantages when used in theGrid industry, making it an ideal solution for smart grid communications.
Here’s how each advantage applies:
High Secure Hard Pipe: Provides dedicated bandwidth for mission-critical applications like SCADA (Supervisory Control and Data Acquisition), ensuring secure and reliable communication.
Isolation Hard Pipe: Ensures complete isolation between different services, preventing interference and enhancing security.
Built-in PCM: Supports legacy analog and digital services, enabling seamless integration with existing grid infrastructure.
MS-OTN (Multi-Service Optical Transport Network): Combines OTN, SDH, and Ethernet capabilities, offering a converged platform for diverse grid applications.
The OSN 1800’s flexibility, security, and support for multiple technologies make it well-suited for the demanding requirements of the Grid industry.
Reference: Huawei OSN 1800 Product Documentation
ITU-T G.709 Standards for OTN
A, B, C, D
Explanation:
All the options are correct. The Huawei OSN 1800offers several advantages when used in theGrid industry, making it an ideal solution for smart grid communications.
Here’s how each advantage applies:
High Secure Hard Pipe: Provides dedicated bandwidth for mission-critical applications like SCADA (Supervisory Control and Data Acquisition), ensuring secure and reliable communication.
Isolation Hard Pipe: Ensures complete isolation between different services, preventing interference and enhancing security.
Built-in PCM: Supports legacy analog and digital services, enabling seamless integration with existing grid infrastructure.
MS-OTN (Multi-Service Optical Transport Network): Combines OTN, SDH, and Ethernet capabilities, offering a converged platform for diverse grid applications.
The OSN 1800’s flexibility, security, and support for multiple technologies make it well-suited for the demanding requirements of the Grid industry.
Reference: Huawei OSN 1800 Product Documentation
ITU-T G.709 Standards for OTN
Question #34
MD02A is able to support FC service.
- A . True
- B . False
Correct Answer: A
A
Explanation:
TheMD02Aboard in the OptiXtrans DC908is a versatile line card that supports multiple services, including Fibre Channel (FC).
Key details:
FC Service Support: The MD02A can handle Fibre Channel rates such as 8G/16G/32G FC, making it suitable for storage area network (SAN) applications in data centers.
Multi-Rate Capability: In addition to FC, the MD02A supports Ethernet and OTN services, providing flexibility for diverse use cases.
High-Speed Transmission: With support for 400G wavelengths, the MD02A ensures high-performance connectivity for mission-critical applications.
Thus, the statement is correct.
Reference: Huawei OptiXtrans DC908 Product Datasheet
Huawei Fibre Channel Service Guide
A
Explanation:
TheMD02Aboard in the OptiXtrans DC908is a versatile line card that supports multiple services, including Fibre Channel (FC).
Key details:
FC Service Support: The MD02A can handle Fibre Channel rates such as 8G/16G/32G FC, making it suitable for storage area network (SAN) applications in data centers.
Multi-Rate Capability: In addition to FC, the MD02A supports Ethernet and OTN services, providing flexibility for diverse use cases.
High-Speed Transmission: With support for 400G wavelengths, the MD02A ensures high-performance connectivity for mission-critical applications.
Thus, the statement is correct.
Reference: Huawei OptiXtrans DC908 Product Datasheet
Huawei Fibre Channel Service Guide
Question #35
EA5800-X2 is able to provide dual AC input interface.
- A . True
- B . False
Correct Answer: A
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.
Reference: Huawei EA5800-X2 Product Datasheet
Huawei OLT Deployment Guide
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.
Reference: Huawei EA5800-X2 Product Datasheet
Huawei OLT Deployment Guide
Question #36
What is the minimum protection switching time of Link-layer Type B Switching?
- A . 1 min
- B . 3 s
- C . 3 min
- D . 50 ms
Correct Answer: D
D
Explanation:
Type B Protectionin GPON networks refers to link-layer redundancy, where two independent fiber paths are used to connect an ONU to the OLT. In the event of a fiber failure, the system automatically switches to the backup path.
Theminimum protection switching timefor Type B protection is50 ms, ensuring minimal disruption to services. This rapid switching time is critical for maintaining high availability and reliability in mission-critical applications.
Reference: ITU-T G.984 Standard – GPON Protection Mechanisms
Huawei GPON Technical Documentation
D
Explanation:
Type B Protectionin GPON networks refers to link-layer redundancy, where two independent fiber paths are used to connect an ONU to the OLT. In the event of a fiber failure, the system automatically switches to the backup path.
Theminimum protection switching timefor Type B protection is50 ms, ensuring minimal disruption to services. This rapid switching time is critical for maintaining high availability and reliability in mission-critical applications.
Reference: ITU-T G.984 Standard – GPON Protection Mechanisms
Huawei GPON Technical Documentation
Question #37
Which of the following devices can be managed by the NCE-T?
- A . MxU series Devices
- B . OLT series Devices
- C . OTN Devices
- D . MSTP Devices
Correct Answer: C
C
Explanation:
The correct answer is OTN Devices. The NCE-T (Network Cloud Engine for Transport) is specifically designed to manage OTN (Optical Transport Network) devices, providing centralized control, monitoring, and automation for optical transport networks.
Here’s how NCE-T supports OTN devices:
Centralized Management: Provides a unified platform for managing OTN devices across the network, simplifying operations and reducing complexity.
Automation: Automates tasks like service provisioning, fault detection, and performance optimization, improving efficiency and reducing manual errors.
Real-Time Monitoring: Tracks key metrics like bandwidth utilization, latency, and error rates to ensure optimal network performance.
Service Orchestration: Coordinates the delivery of services like IPTV, VoIP, and broadband internet across multiple OTN devices.
Other options:
MxU series Devices: Managed by access network solutions like the NCE-Access.
OLT series Devices: Managed by GPON/FTTx solutions like the NCE-FAN.
MSTP Devices: Managed by legacy SDH/SONET solutions, not NCE-T.
The NCE-T’s focus on OTN devices reflects its role in modernizing optical transport networks for high-capacity, low-latency applications.
Reference: Huawei NCE-T Product Documentation
ITU-T G.709 Standards for OTN
C
Explanation:
The correct answer is OTN Devices. The NCE-T (Network Cloud Engine for Transport) is specifically designed to manage OTN (Optical Transport Network) devices, providing centralized control, monitoring, and automation for optical transport networks.
Here’s how NCE-T supports OTN devices:
Centralized Management: Provides a unified platform for managing OTN devices across the network, simplifying operations and reducing complexity.
Automation: Automates tasks like service provisioning, fault detection, and performance optimization, improving efficiency and reducing manual errors.
Real-Time Monitoring: Tracks key metrics like bandwidth utilization, latency, and error rates to ensure optimal network performance.
Service Orchestration: Coordinates the delivery of services like IPTV, VoIP, and broadband internet across multiple OTN devices.
Other options:
MxU series Devices: Managed by access network solutions like the NCE-Access.
OLT series Devices: Managed by GPON/FTTx solutions like the NCE-FAN.
MSTP Devices: Managed by legacy SDH/SONET solutions, not NCE-T.
The NCE-T’s focus on OTN devices reflects its role in modernizing optical transport networks for high-capacity, low-latency applications.
Reference: Huawei NCE-T Product Documentation
ITU-T G.709 Standards for OTN
Question #38
Which aspects does the Campus OptiX (POL) save investment from?
- A . Opex
- B . Capex
- C . Capex (Active Equipment, Cabling and Construct) & Opex
- D . Capex (Only Cabling and Construct) & Opex
Correct Answer: C
C
Explanation:
Campus OptiX (POL) saves investment in both Capex (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.
Reference: Huawei Campus OptiX (POL) Solution White Paper
IEEE 802.3ah Standards for PON
C
Explanation:
Campus OptiX (POL) saves investment in both Capex (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.
Reference: Huawei Campus OptiX (POL) Solution White Paper
IEEE 802.3ah Standards for PON
Question #39
What is the minimum number of chassis to deploy an 8x200G (2x100GE) WDM system with DC908?
- A . 2
- B . 1
- C . 4
- D . 3
Correct Answer: B
B
Explanation:
The correct answer is1. The OptiXtrans DC908is designed to support high-density configurations, allowing an8x200G (2x100GE) WDM system to be deployed using just one 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, enabling efficient
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.
Reference: Huawei OptiXtrans DC908 Product Documentation
ITU-T G.698 Standards for WDM
B
Explanation:
The correct answer is1. The OptiXtrans DC908is designed to support high-density configurations, allowing an8x200G (2x100GE) WDM system to be deployed using just one 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, enabling efficient
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.
Reference: Huawei OptiXtrans DC908 Product Documentation
ITU-T G.698 Standards for WDM
Question #40
OptiXtrans E9624 maximum cross-connect capacity is 2.4T per subrack.
- A . True
- B . False
Correct Answer: B
B
Explanation:
The OptiXtrans E9624is a high-end optical transport platform designed for core networks. Its maximum 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
B
Explanation:
The OptiXtrans E9624is a high-end optical transport platform designed for core networks. Its maximum 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