Huawei H19-315 Practice Exams
Last updated on Oct 22,2026- Exam Code: H19-315
- Exam Name: HCSA-Presales-Transmission & Access
- Certification Provider: Huawei
- Latest update: Oct 22,2026
Question #91
The OSN 1800 products are the industry’s highest-integrated 200G transmission solution and can access 64K to 100GE any service.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The statement is True. The OSN 1800series is renowned for being the industry’s highest-integrated 200G transmission solution, capable of supporting services ranging from64Kbps to 100GE.
Key features of the OSN 1800 include:
High Integration: The OSN 1800 combines multiple technologies (e.g., OTN, SDH, Ethernet) into a
compact form factor, maximizing space efficiency.
Scalable Capacity: Supports up to200G per wavelength, enabling high-capacity transport for metro and access networks.
Service Flexibility: Can handle a wide range of services, from low-speed TDM (Time Division Multiplexing) circuits (e.g., 64Kbps) to high-speed Ethernet (e.g., 100GE).
Converged Architecture: Integrates OTN, SDH, and packet switching into a single platform, simplifying network operations and reducing costs.
These capabilities make the OSN 1800 ideal for applications like enterprise connectivity, mobile backhaul, and data center interconnects.
Reference: Huawei OSN 1800 Product Documentation
ITU-T G.709 Standards for OTN
A
Explanation:
The statement is True. The OSN 1800series is renowned for being the industry’s highest-integrated 200G transmission solution, capable of supporting services ranging from64Kbps to 100GE.
Key features of the OSN 1800 include:
High Integration: The OSN 1800 combines multiple technologies (e.g., OTN, SDH, Ethernet) into a
compact form factor, maximizing space efficiency.
Scalable Capacity: Supports up to200G per wavelength, enabling high-capacity transport for metro and access networks.
Service Flexibility: Can handle a wide range of services, from low-speed TDM (Time Division Multiplexing) circuits (e.g., 64Kbps) to high-speed Ethernet (e.g., 100GE).
Converged Architecture: Integrates OTN, SDH, and packet switching into a single platform, simplifying network operations and reducing costs.
These capabilities make the OSN 1800 ideal for applications like enterprise connectivity, mobile backhaul, and data center interconnects.
Reference: Huawei OSN 1800 Product Documentation
ITU-T G.709 Standards for OTN
Question #92
Which of the following features can provide real-time network quality monitoring, pre-warning, and optimization of link deterioration?
- A . Service Doctor
- B . Network Doctor
- C . Optical Doctor
- D . Fiber Doctor
Correct Answer: B
B
Explanation:
The Network Doctor feature is designed to providereal-time network quality monitoring, pre-warning, and optimization of link deterioration.
It uses AI-driven analytics to:
Continuously monitor network performance metrics such as latency, jitter, and packet loss.
Identify potential issues before they impact services, enabling proactive maintenance.
Optimize link performance by recommending adjustments to routing, bandwidth allocation, or other parameters.
Other options like "Service Doctor" focus on service-level diagnostics, while "Optical Doctor" and “Fiber Doctor" are specific to optical and fiber-level monitoring, respectively.
Reference: Huawei NCE-FAN Product Documentation
Huawei Network Quality Monitoring Best Practices
B
Explanation:
The Network Doctor feature is designed to providereal-time network quality monitoring, pre-warning, and optimization of link deterioration.
It uses AI-driven analytics to:
Continuously monitor network performance metrics such as latency, jitter, and packet loss.
Identify potential issues before they impact services, enabling proactive maintenance.
Optimize link performance by recommending adjustments to routing, bandwidth allocation, or other parameters.
Other options like "Service Doctor" focus on service-level diagnostics, while "Optical Doctor" and “Fiber Doctor" are specific to optical and fiber-level monitoring, respectively.
Reference: Huawei NCE-FAN Product Documentation
Huawei Network Quality Monitoring Best Practices
Question #93
What are the basic components of the PON system?
- A . WDM
- B . ONU
- C . OLT
- D . ODN
Correct Answer: B, C, D
B, C, D
Explanation:
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.
Reference: ITU-T G.984 Standard – PON Architecture
Huawei PON System Design Guide
B, C, D
Explanation:
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.
Reference: ITU-T G.984 Standard – PON Architecture
Huawei PON System Design Guide
Question #94
Which of the following are the highlights of the NCE-FAN Home Network?
- A . High-quality Home Network Deployment, Facilitating Fast Wi-Fi Service Rollout
- B . Accurate Insight, Identifying Potential Opportunities
- C . Automatic Service Deployment, Boosting Service Rollout
- D . Intelligent O&M for Home Networks, Reducing Unnecessary Field Visits
Correct Answer: A, B, C, D
A, B, C, D
Explanation:
All the options are correct. The NCE-FAN Home Network solution offers a comprehensive suite of features to enhance home network management and service delivery.
Here’s a breakdown of each highlight:
High-quality Home Network Deployment, Facilitating Fast Wi-Fi Service Rollout: NCE-FAN simplifies the deployment of high-quality home networks by automating configurations and optimizing Wi-Fi performance. This ensures that services like IPTV, VoIP, and broadband internet are delivered seamlessly and quickly.
Accurate Insight, Identifying Potential Opportunities: The solution provides detailed analytics and visibility into home network performance, enabling service providers to identify potential issues or opportunities for upselling additional services (e.g., premium Wi-Fi packages).
Automatic Service Deployment, Boosting Service Rollout: Automation is a key feature of NCE-FAN, allowing service providers to deploy new services rapidly without manual intervention. This reduces operational complexity and accelerates time-to-market for new offerings.
Intelligent O&M for Home Networks, Reducing Unnecessary Field Visits: By leveraging AI and machine learning, NCE-FAN can predict and resolve issues remotely, minimizing the need for costly field visits. This improves customer satisfaction while reducing operational expenses.
These features collectively enhance the efficiency, reliability, and profitability of home network operations.
Reference: Huawei NCE-FAN Product Documentation
Huawei Home Network Solution White Paper
A, B, C, D
Explanation:
All the options are correct. The NCE-FAN Home Network solution offers a comprehensive suite of features to enhance home network management and service delivery.
Here’s a breakdown of each highlight:
High-quality Home Network Deployment, Facilitating Fast Wi-Fi Service Rollout: NCE-FAN simplifies the deployment of high-quality home networks by automating configurations and optimizing Wi-Fi performance. This ensures that services like IPTV, VoIP, and broadband internet are delivered seamlessly and quickly.
Accurate Insight, Identifying Potential Opportunities: The solution provides detailed analytics and visibility into home network performance, enabling service providers to identify potential issues or opportunities for upselling additional services (e.g., premium Wi-Fi packages).
Automatic Service Deployment, Boosting Service Rollout: Automation is a key feature of NCE-FAN, allowing service providers to deploy new services rapidly without manual intervention. This reduces operational complexity and accelerates time-to-market for new offerings.
Intelligent O&M for Home Networks, Reducing Unnecessary Field Visits: By leveraging AI and machine learning, NCE-FAN can predict and resolve issues remotely, minimizing the need for costly field visits. This improves customer satisfaction while reducing operational expenses.
These features collectively enhance the efficiency, reliability, and profitability of home network operations.
Reference: Huawei NCE-FAN Product Documentation
Huawei Home Network Solution White Paper
Question #95
In which of the following scenarios can OSN 9800 be used?
- A . Safe City
- B . ISP
- C . Campus
- D . Electrical Grid
- E . Railway
Correct Answer: A, B, C, D, E
A, B, C, D, E
Explanation:
The correct answer includes all options: Safe City, ISP, Campus, Electrical Grid, and Railway. The Huawei OSN 9800series is a versatile optical transport platform designed for a wide range of applications across industries.
Here’s how the OSN 9800 can be applied in each scenario:
Safe City: Supports video surveillance backhaul, enabling real-time monitoring and analysis for public safety.
ISP (Internet Service Provider): Provides high-capacity backbone connectivity for delivering broadband, IPTV, and cloud services.
Campus: Facilitates high-speed connectivity for enterprise campuses, supporting applications like Wi-Fi backhaul and unified communications.
Electrical Grid: Ensures reliable communication for smart grid operations, including SCADA
(Supervisory Control and Data Acquisition) systems.
Railway: Enables mission-critical communications for railway signaling, passenger information systems, and operational control.
The OSN 9800’s flexibility, scalability, and support for multiple technologies (e.g., OTN, SDH, Ethernet) make it suitable for diverse use cases.
Reference: Huawei OSN 9800 Product Documentation
ITU-T G.709 Standards for OTN
A, B, C, D, E
Explanation:
The correct answer includes all options: Safe City, ISP, Campus, Electrical Grid, and Railway. The Huawei OSN 9800series is a versatile optical transport platform designed for a wide range of applications across industries.
Here’s how the OSN 9800 can be applied in each scenario:
Safe City: Supports video surveillance backhaul, enabling real-time monitoring and analysis for public safety.
ISP (Internet Service Provider): Provides high-capacity backbone connectivity for delivering broadband, IPTV, and cloud services.
Campus: Facilitates high-speed connectivity for enterprise campuses, supporting applications like Wi-Fi backhaul and unified communications.
Electrical Grid: Ensures reliable communication for smart grid operations, including SCADA
(Supervisory Control and Data Acquisition) systems.
Railway: Enables mission-critical communications for railway signaling, passenger information systems, and operational control.
The OSN 9800’s flexibility, scalability, and support for multiple technologies (e.g., OTN, SDH, Ethernet) make it suitable for diverse use cases.
Reference: Huawei OSN 9800 Product Documentation
ITU-T G.709 Standards for OTN
Question #96
Which of the following statements about OptiXtrans DC908 is correct?
- A . OptiXtrans DC908 is 2U high, which is able to install in a 600mm deep rack.
- B . OptiXtrans DC908 cannot be managed by NCE.
- C . OptiXtrans DC908 can support L2 function.
- D . OptiXtrans DC908 is designed for the DON application.
Correct Answer: A
A
Explanation:
The OptiXtrans DC908is a compact and powerful data center interconnect (DCI) solution. Here’s an analysis of each statement:
Statement A: The DC908 is2U highand designed to fit into shallow racks (e.g., 600mm deep), making it ideal for space-constrained environments. This statement is correct.
Statement B: The DC908can be managed by NCE (Network Cloud Engine), enabling centralized control and automation. This statement is incorrect.
Statement C: The DC908 primarily focuses on Layer 1 (optical transport) and does not natively support Layer 2 functions. This statement is incorrect.
Statement D: The DC908 is designed for DCI (Data Center Interconnect) applications, not DON (Distributed Optical Network). This statement is incorrect.
Thus, the correct answer is A.
Reference: Huawei OptiXtrans DC908 Product Datasheet
Huawei DCI Solution Guide
A
Explanation:
The OptiXtrans DC908is a compact and powerful data center interconnect (DCI) solution. Here’s an analysis of each statement:
Statement A: The DC908 is2U highand designed to fit into shallow racks (e.g., 600mm deep), making it ideal for space-constrained environments. This statement is correct.
Statement B: The DC908can be managed by NCE (Network Cloud Engine), enabling centralized control and automation. This statement is incorrect.
Statement C: The DC908 primarily focuses on Layer 1 (optical transport) and does not natively support Layer 2 functions. This statement is incorrect.
Statement D: The DC908 is designed for DCI (Data Center Interconnect) applications, not DON (Distributed Optical Network). This statement is incorrect.
Thus, the correct answer is A.
Reference: Huawei OptiXtrans DC908 Product Datasheet
Huawei DCI Solution Guide
Question #97
How many waves @50GHz can Super-C provide?
- A . 80
- B . 120
- C . 96
- D . 88
Correct Answer: C
C
Explanation:
The Super-C band is an extension of the traditional C-band used in Dense Wavelength Division Multiplexing (DWDM) systems. It increases the number of available wavelengths by utilizing tighter channel spacing of50 GHz. Specifically, the Super-C band can support up to96 wavelengths at 50 GHz spacing, compared to the standard 80 wavelengths in the conventional C-band.
This enhancement allows for higher spectral efficiency and increased capacity in optical transport networks, making it ideal for high-density traffic scenarios.
Reference: ITU-T G.694.1 Standard – DWDM Channel Plans
Huawei DWDM Solution Guide
C
Explanation:
The Super-C band is an extension of the traditional C-band used in Dense Wavelength Division Multiplexing (DWDM) systems. It increases the number of available wavelengths by utilizing tighter channel spacing of50 GHz. Specifically, the Super-C band can support up to96 wavelengths at 50 GHz spacing, compared to the standard 80 wavelengths in the conventional C-band.
This enhancement allows for higher spectral efficiency and increased capacity in optical transport networks, making it ideal for high-density traffic scenarios.
Reference: ITU-T G.694.1 Standard – DWDM Channel Plans
Huawei DWDM Solution Guide
Question #98
OptiXtrans E9600 series includes: OptiXtrans E9624, OptiXtrans E9612, and OptiXtrans E9605.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The OptiXtrans E9600 series is 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.
Reference: Huawei OptiXtrans E9600 Series Product Documentation
Huawei Optical Transport Network Solution Guide
A
Explanation:
The OptiXtrans E9600 series is 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.
Reference: Huawei OptiXtrans E9600 Series Product Documentation
Huawei Optical Transport Network Solution Guide
Question #99
What is the maximum single-fiber capacity of OSN9800?
- A . 24T
- B . 19.2T
- C . 48T
- D . 16T
Correct Answer: C
C
Explanation:
The correct answer is48T. The Huawei OSN 9800series supports a maximum single-fiber capacity of48 Tbps, making it one of the most advanced optical transport platforms available.
Key factors contributing to this high capacity include:
WDM (Wavelength Division Multiplexing): Combines multiple wavelengths on a single fiber, each carrying data at speeds up to 400G or higher.
OTN (Optical Transport Network): Provides efficient framing and multiplexing, enabling high-density traffic aggregation.
Advanced Modulation Techniques: Uses techniques like QPSK (Quadrature Phase Shift Keying) and QAM (Quadrature Amplitude Modulation) to maximize spectral efficiency.
This level of capacity is critical for backbone and core networks, where large volumes of data need to be transmitted over long distances without bottlenecks.
Reference: Huawei OSN 9800 Product Documentation
ITU-T G.709 Standards for OTN
C
Explanation:
The correct answer is48T. The Huawei OSN 9800series supports a maximum single-fiber capacity of48 Tbps, making it one of the most advanced optical transport platforms available.
Key factors contributing to this high capacity include:
WDM (Wavelength Division Multiplexing): Combines multiple wavelengths on a single fiber, each carrying data at speeds up to 400G or higher.
OTN (Optical Transport Network): Provides efficient framing and multiplexing, enabling high-density traffic aggregation.
Advanced Modulation Techniques: Uses techniques like QPSK (Quadrature Phase Shift Keying) and QAM (Quadrature Amplitude Modulation) to maximize spectral efficiency.
This level of capacity is critical for backbone and core networks, where large volumes of data need to be transmitted over long distances without bottlenecks.
Reference: Huawei OSN 9800 Product Documentation
ITU-T G.709 Standards for OTN
Question #100
Which of the following are the main sale scenarios of the Campus OptiX (POL) ?
- A . Room-like scenarios, including education, hotel, medical, apartment
- B . All office scenarios, including wired and wireless access
- C . Wi-Fi backhaul scenarios, including wireless campus, wireless office, wireless hotel
- D . Video backhaul scenarios, including Safe city, park monitoring
Correct Answer: A, D
A, D
Explanation:
The Campus 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
A, D
Explanation:
The Campus 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