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 #51
Which of the following networks can be supported by MS-OTN?
- A . PKT
- B . OTN
- C . SDH
Correct Answer: A, B, C
A, B, C
Explanation:
MS-OTN (Multi-Service Optical Transport Network) is a versatile technology that supports multiple types of networks, including:
PKT (Packet): Enables packet-based services such as Ethernet and IP/MPLS.
OTN (Optical Transport Network): Provides high-capacity transport for long-haul and metro networks.
SDH (Synchronous Digital Hierarchy): Supports legacy TDM-based services.
MS-OTN integrates these technologies into a single platform, allowing service providers to converge multiple services onto a unified infrastructure. This flexibility makes MS-OTN ideal for modernizing existing networks while supporting future growth.
Reference: ITU-T G.709 Standard – OTN Specifications
Huawei MS-OTN Solution Guide
A, B, C
Explanation:
MS-OTN (Multi-Service Optical Transport Network) is a versatile technology that supports multiple types of networks, including:
PKT (Packet): Enables packet-based services such as Ethernet and IP/MPLS.
OTN (Optical Transport Network): Provides high-capacity transport for long-haul and metro networks.
SDH (Synchronous Digital Hierarchy): Supports legacy TDM-based services.
MS-OTN integrates these technologies into a single platform, allowing service providers to converge multiple services onto a unified infrastructure. This flexibility makes MS-OTN ideal for modernizing existing networks while supporting future growth.
Reference: ITU-T G.709 Standard – OTN Specifications
Huawei MS-OTN Solution Guide
Question #52
Which of the following definitions about POL is correct?
- A . Procurement on Line, Purchasing Online System
- B . Point of Load
- C . Passive Optical LAN, is the application of PON technology in the enterprise campus environment
- D . Port of Loading, the loading port is where the goods are initially shipped.
Correct Answer: C
C
Explanation:
The correct definition of POL (Passive Optical LAN) is that it is the application of PON (Passive Optical Network) technology in the enterprise campus environment. POL leverages the advantages of fiber optics, such as high bandwidth, long transmission distances, and low maintenance costs, to provide a converged network solution for enterprises. It replaces traditional copper-based LAN infrastructure with an all-optical network, supporting services like data, voice, and video over a single fiber.
Procurement on Line, Purchasing Online System: This is unrelated to POL and refers to online procurement systems.
Point of Load: Refers to power electronics and is unrelated to optical networks.
Port of Loading: A logistics term referring to the location where goods are loaded onto a carrier, unrelated to POL.
Reference: Huawei Campus OptiX (POL) Solution White Paper
IEEE 802.3ah Standards for PON
C
Explanation:
The correct definition of POL (Passive Optical LAN) is that it is the application of PON (Passive Optical Network) technology in the enterprise campus environment. POL leverages the advantages of fiber optics, such as high bandwidth, long transmission distances, and low maintenance costs, to provide a converged network solution for enterprises. It replaces traditional copper-based LAN infrastructure with an all-optical network, supporting services like data, voice, and video over a single fiber.
Procurement on Line, Purchasing Online System: This is unrelated to POL and refers to online procurement systems.
Point of Load: Refers to power electronics and is unrelated to optical networks.
Port of Loading: A logistics term referring to the location where goods are loaded onto a carrier, unrelated to POL.
Reference: Huawei Campus OptiX (POL) Solution White Paper
IEEE 802.3ah Standards for PON
Question #53
Which of the following statements about MS-OTN are correct?
- A . MS-OTN is short for Multi-Service Optical Transport Network.
- B . MS-OTN supports SDH, PKT, and OTN services.
- C . MS-OTN supports ODUk cross-connections.
- D . OSN 1800V, 1800II E, and 1800I E all can support MS-OTN.
Correct Answer: A, B, C
A, B, C
Explanation:
The correct answers are A, B, and C.
Here’s a detailed explanation of each statement:
A, B, C
Explanation:
The correct answers are A, B, and C.
Here’s a detailed explanation of each statement:
Question #54
NCE-FAN doesn’t support Local HA.
- A . True
- B . False
Correct Answer: B
B
Explanation:
The statement is False. The NCE-FAN (Network Cloud Engine for Fixed Access Networks) does support Local High Availability (HA). Local HA ensures that the system remains operational even in the event of hardware or software failures, providing uninterrupted service delivery.
Key features of Local HA in NCE-FAN include:
Redundant Components: Critical components like control boards and power supplies are duplicated to prevent single points of failure.
Failover Mechanism: If the primary component fails, the backup component takes over automatically, minimizing downtime.
Data Synchronization: Real-time synchronization of configuration and operational data ensures seamless transitions during failover.
Local HA is essential for carrier-grade networks where high availability is a top priority. It complements other redundancy mechanisms, such as distributed architectures and remote backups, to ensure robust network performance.
Reference: Huawei NCE-FAN Product Documentation
ITU-T G.984.x Standards for GPON
B
Explanation:
The statement is False. The NCE-FAN (Network Cloud Engine for Fixed Access Networks) does support Local High Availability (HA). Local HA ensures that the system remains operational even in the event of hardware or software failures, providing uninterrupted service delivery.
Key features of Local HA in NCE-FAN include:
Redundant Components: Critical components like control boards and power supplies are duplicated to prevent single points of failure.
Failover Mechanism: If the primary component fails, the backup component takes over automatically, minimizing downtime.
Data Synchronization: Real-time synchronization of configuration and operational data ensures seamless transitions during failover.
Local HA is essential for carrier-grade networks where high availability is a top priority. It complements other redundancy mechanisms, such as distributed architectures and remote backups, to ensure robust network performance.
Reference: Huawei NCE-FAN Product Documentation
ITU-T G.984.x Standards for GPON
Question #55
Which of the following optical modules are used in commercial case currently?
- A . Class D
- B . Class B+
- C . Class E
- D . Class C+
- E . Class F
Correct Answer: B, D
B, D
Explanation:
The correct answers are Class B+ and Class C+. These optical module classes are widely used in commercial GPON deployments due to their balance of performance, cost, and reliability.
Class B+: Supports transmission distances up to20 km and is commonly used in urban and suburban areas. It provides sufficient power budget for most residential and small business applications.
Class C+: Supports longer distances (up to40 km) and higher split ratios, making it ideal for rural or remote areas where extended reach is required.
Other options:
Class D: Not a standard classification for GPON optical modules.
Class E and F: These classifications do not exist in current GPON standards.
The choice between Class B+ and Class C+ depends on the specific deployment scenario, including distance, split ratio, and environmental conditions.
Reference: ITU-T G.984.x Standards for GPON
Huawei GPON Optical Module Specifications
B, D
Explanation:
The correct answers are Class B+ and Class C+. These optical module classes are widely used in commercial GPON deployments due to their balance of performance, cost, and reliability.
Class B+: Supports transmission distances up to20 km and is commonly used in urban and suburban areas. It provides sufficient power budget for most residential and small business applications.
Class C+: Supports longer distances (up to40 km) and higher split ratios, making it ideal for rural or remote areas where extended reach is required.
Other options:
Class D: Not a standard classification for GPON optical modules.
Class E and F: These classifications do not exist in current GPON standards.
The choice between Class B+ and Class C+ depends on the specific deployment scenario, including distance, split ratio, and environmental conditions.
Reference: ITU-T G.984.x Standards for GPON
Huawei GPON Optical Module Specifications
Question #56
OLT EA5800 uses distributed architecture to provide super high performance switching.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The statement is True. The Huawei EA5800 OLT employs a distributed architecture to deliver superior performance and scalability. In a distributed architecture, processing tasks are divided among multiple components, reducing bottlenecks and improving overall system efficiency. This design allows the EA5800 to handle high-density subscriber traffic with low latency and high reliability, making it ideal for carrier-grade deployments.
Key benefits of the distributed architecture include:
High Performance Switching: Supports large-scale data forwarding with minimal delay. Scalability: Easily accommodates additional subscribers and services. Redundancy: Enhances fault tolerance and network availability.
Reference: Huawei EA5800 OLT Product Documentation
Huawei GPON Technology White Paper
A
Explanation:
The statement is True. The Huawei EA5800 OLT employs a distributed architecture to deliver superior performance and scalability. In a distributed architecture, processing tasks are divided among multiple components, reducing bottlenecks and improving overall system efficiency. This design allows the EA5800 to handle high-density subscriber traffic with low latency and high reliability, making it ideal for carrier-grade deployments.
Key benefits of the distributed architecture include:
High Performance Switching: Supports large-scale data forwarding with minimal delay. Scalability: Easily accommodates additional subscribers and services. Redundancy: Enhances fault tolerance and network availability.
Reference: Huawei EA5800 OLT Product Documentation
Huawei GPON Technology White Paper
Question #57
Which of the following features can provide Real-time network quality monitoring, pre-warning, and optimization of link deterioration?
- A . Fiber Doctor
- B . Network Doctor
- C . Optical Doctor
- D . Service Doctor
Correct Answer: B
B
Explanation:
The correct answer is Network Doctor. The Network Doctor feature provides real-time monitoring, early warnings, and optimization capabilities to ensure high-quality network performance.
Here’s how Network Doctor works:
Real-Time Monitoring: Tracks key performance indicators (KPIs) such as latency, jitter, packet loss, and bandwidth utilization.
Pre-Warning System: Detects anomalies and predicts potential issues before they impact services, enabling proactive intervention.
Link Optimization: Automatically adjusts network parameters to optimize link performance and prevent deterioration.
AI and Analytics: Leverages artificial intelligence and big data analytics to provide actionable insights and recommendations.
Other options:
Fiber Doctor: Focuses on physical fiber health rather than overall network quality.
Optical Doctor: Optimizes optical signal quality but does not monitor end-to-end network performance.
Service Doctor: Monitors specific services (e.g., IPTV, VoIP) but does not provide comprehensive network-wide insights.
Reference: Huawei Network Doctor Technology White Paper
ITU-T G.872 Standards for Optical Network Architecture
B
Explanation:
The correct answer is Network Doctor. The Network Doctor feature provides real-time monitoring, early warnings, and optimization capabilities to ensure high-quality network performance.
Here’s how Network Doctor works:
Real-Time Monitoring: Tracks key performance indicators (KPIs) such as latency, jitter, packet loss, and bandwidth utilization.
Pre-Warning System: Detects anomalies and predicts potential issues before they impact services, enabling proactive intervention.
Link Optimization: Automatically adjusts network parameters to optimize link performance and prevent deterioration.
AI and Analytics: Leverages artificial intelligence and big data analytics to provide actionable insights and recommendations.
Other options:
Fiber Doctor: Focuses on physical fiber health rather than overall network quality.
Optical Doctor: Optimizes optical signal quality but does not monitor end-to-end network performance.
Service Doctor: Monitors specific services (e.g., IPTV, VoIP) but does not provide comprehensive network-wide insights.
Reference: Huawei Network Doctor Technology White Paper
ITU-T G.872 Standards for Optical Network Architecture
Question #58
Which of the following are the highlights of the NCE-T?
- A . Visualized Bandwidth Resources
- B . Optical VPN (OVPN)
- C . Optical Latency Map
- D . Optical Service Provisioning
- E . CPE Plug and Play
Correct Answer: A, B, C, D, E
A, B, C, D, E
Explanation:
The NCE-T (Network Cloud Engine – Transport) is a comprehensive platform for managing optical transport networks. Its key highlights include:
Visualized Bandwidth Resources: Provides real-time visibility into network bandwidth usage, enabling efficient resource allocation.
Optical VPN (OVPN): Supports virtual private networks over optical transport networks, ensuring secure and isolated connectivity for different tenants.
Optical Latency Map: Displays end-to-end latency across the network, helping optimize performance for latency-sensitive applications.
Optical Service Provisioning: Automates the provisioning of optical services, reducing manual intervention and speeding up deployment.
CPE Plug and Play: Simplifies the deployment of customer premises equipment (CPE) by enabling zero-touch provisioning.
These features make the NCE-T a powerful tool for managing modern optical networks.
Reference: Huawei NCE-T Product Documentation
Huawei Optical Transport Network Solution Guide
A, B, C, D, E
Explanation:
The NCE-T (Network Cloud Engine – Transport) is a comprehensive platform for managing optical transport networks. Its key highlights include:
Visualized Bandwidth Resources: Provides real-time visibility into network bandwidth usage, enabling efficient resource allocation.
Optical VPN (OVPN): Supports virtual private networks over optical transport networks, ensuring secure and isolated connectivity for different tenants.
Optical Latency Map: Displays end-to-end latency across the network, helping optimize performance for latency-sensitive applications.
Optical Service Provisioning: Automates the provisioning of optical services, reducing manual intervention and speeding up deployment.
CPE Plug and Play: Simplifies the deployment of customer premises equipment (CPE) by enabling zero-touch provisioning.
These features make the NCE-T a powerful tool for managing modern optical networks.
Reference: Huawei NCE-T Product Documentation
Huawei Optical Transport Network Solution Guide
Question #59
NCE-FAN includes Management module, Control module, and Analysis module.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The NCE-FAN (Network Cloud Engine – Fiber Access Network) is a comprehensive platform for managing fiber access networks.
It consists of three core modules:
Management Module: Handles device configuration, fault monitoring, and performance management.
Control Module: Provides centralized control over network resources, enabling features like automatic service provisioning and policy enforcement.
Analysis Module: Uses AI and big data analytics to provide insights into network performance, user behavior, and potential issues.
These modules work together to deliver intelligent, efficient, and scalable management of fiber access networks.
Reference: Huawei NCE-FAN Product Documentation
Huawei Fiber Access Network Solution Guide
A
Explanation:
The NCE-FAN (Network Cloud Engine – Fiber Access Network) is a comprehensive platform for managing fiber access networks.
It consists of three core modules:
Management Module: Handles device configuration, fault monitoring, and performance management.
Control Module: Provides centralized control over network resources, enabling features like automatic service provisioning and policy enforcement.
Analysis Module: Uses AI and big data analytics to provide insights into network performance, user behavior, and potential issues.
These modules work together to deliver intelligent, efficient, and scalable management of fiber access networks.
Reference: Huawei NCE-FAN Product Documentation
Huawei Fiber Access Network Solution Guide
Question #60
Which of the following features can monitor fiber status and fast locate fault points?
- A . Service Doctor
- B . Wavelength Doctor
- C . Optical Doctor
- D . Fiber Doctor
Correct Answer: D
D
Explanation:
The Fiber Doctorfeature is specifically designed to monitor the status of optical fibers and quickly locate fault points in the network.
It uses advanced diagnostics and AI-driven analytics to:
Detect issues such as fiber breaks, attenuation, and connector faults.
Provide precise fault location information, reducing troubleshooting time and field visits.
Ensure high reliability and availability of the optical network.
Other options like "Service Doctor" and "Optical Doctor" focus on higher-layer services or optical performance but do not specialize in fiber-level diagnostics.
Reference: Huawei NCE-FAN Product Documentation
Huawei Optical Network Monitoring Best Practices
D
Explanation:
The Fiber Doctorfeature is specifically designed to monitor the status of optical fibers and quickly locate fault points in the network.
It uses advanced diagnostics and AI-driven analytics to:
Detect issues such as fiber breaks, attenuation, and connector faults.
Provide precise fault location information, reducing troubleshooting time and field visits.
Ensure high reliability and availability of the optical network.
Other options like "Service Doctor" and "Optical Doctor" focus on higher-layer services or optical performance but do not specialize in fiber-level diagnostics.
Reference: Huawei NCE-FAN Product Documentation
Huawei Optical Network Monitoring Best Practices