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 #1
Huawei’s OptiXtrans DC908 product is able to support 400GE service.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The OptiXtrans DC908is a high-performance data center interconnect (DCI) solution that supports400GE (Gigabit Ethernet) services. This capability is critical for modern data centers requiring ultra-high-speed connectivity for applications like cloud computing, big data analytics, and artificial intelligence.
Key details:
400GE Support: The DC908 uses advanced line cards (e.g., MD02A) to provide native 400GE interfaces.
High Capacity: With support for up to 800G per wavelength, the DC908 ensures sufficient bandwidth for 400GE traffic.
Low Latency: Optimized for minimal delays, ensuring seamless performance for latency-sensitive applications.
Thus, the statement is correct.
Reference: Huawei OptiXtrans DC908 Product Datasheet
Huawei 400GE Service Deployment Guide
A
Explanation:
The OptiXtrans DC908is a high-performance data center interconnect (DCI) solution that supports400GE (Gigabit Ethernet) services. This capability is critical for modern data centers requiring ultra-high-speed connectivity for applications like cloud computing, big data analytics, and artificial intelligence.
Key details:
400GE Support: The DC908 uses advanced line cards (e.g., MD02A) to provide native 400GE interfaces.
High Capacity: With support for up to 800G per wavelength, the DC908 ensures sufficient bandwidth for 400GE traffic.
Low Latency: Optimized for minimal delays, ensuring seamless performance for latency-sensitive applications.
Thus, the statement is correct.
Reference: Huawei OptiXtrans DC908 Product Datasheet
Huawei 400GE Service Deployment Guide
Question #2
OptiXtrans DC908 has 8 slots, each slot is 5U wide.
- A . True
- B . False
Correct Answer: B
B
Explanation:
The statement is False. The OptiXtrans DC908does not have8 slots, nor are the slots5U wide. Instead, the DC908 is a compact 2U device with a fixed configuration, meaning it does not use modular slots like some other optical transport platforms.
Key characteristics of the DC908 include:
Fixed Configuration: The DC908 is designed as an all-in-one device, integrating optical modules, amplifiers, and control units into a single chassis.
Compact Design: Its2U height and shallow depth (compatible with 600mm racks) make it ideal for space-constrained environments.
High Capacity: Despite its small size, the DC908 supports up to8Tbps per fiber pair, leveraging advanced technologies like 400G wavelengths.
The confusion may arise from other devices in the OptiXtrans series that use modular designs, but the DC908 itself is not slot-based.
Reference: Huawei OptiXtrans DC908 Product Documentation
ITU-T G.709 Standards for OTN
B
Explanation:
The statement is False. The OptiXtrans DC908does not have8 slots, nor are the slots5U wide. Instead, the DC908 is a compact 2U device with a fixed configuration, meaning it does not use modular slots like some other optical transport platforms.
Key characteristics of the DC908 include:
Fixed Configuration: The DC908 is designed as an all-in-one device, integrating optical modules, amplifiers, and control units into a single chassis.
Compact Design: Its2U height and shallow depth (compatible with 600mm racks) make it ideal for space-constrained environments.
High Capacity: Despite its small size, the DC908 supports up to8Tbps per fiber pair, leveraging advanced technologies like 400G wavelengths.
The confusion may arise from other devices in the OptiXtrans series that use modular designs, but the DC908 itself is not slot-based.
Reference: Huawei OptiXtrans DC908 Product Documentation
ITU-T G.709 Standards for OTN
Question #3
Which of the following services can FTTx Solution provide?
- A . High-Speed Internet
- B . Home-WiFi
- C . Telephone
- D . IPTV
Correct Answer: A, B, C, D
A, B, C, D
Explanation:
The FTTx (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.
Reference: Huawei FTTx Solution Guide
ITU-T G.984 Standard – FTTx Applications
A, B, C, D
Explanation:
The FTTx (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.
Reference: Huawei FTTx Solution Guide
ITU-T G.984 Standard – FTTx Applications
Question #4
The deployment of SmartWiFi feature supports SaaS model.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The SmartWiFifeature, part of Huawei’s home network solutions, supports the Software-as-a-Service (SaaS) model. This allows service providers to offer managed Wi-Fi services to customers without requiring them to purchase or maintain the underlying hardware and software infrastructure.
In the SaaS model, the SmartWiFi platform is hosted in the cloud, enabling centralizedmanagement,
real-time monitoring, and automatic updates. This approach simplifies deployment, reduces costs, and ensures scalability for large-scale deployments.
Reference: Huawei SmartWiFi Solution Guide
Cloud-Based Network Management Best Practices
A
Explanation:
The SmartWiFifeature, part of Huawei’s home network solutions, supports the Software-as-a-Service (SaaS) model. This allows service providers to offer managed Wi-Fi services to customers without requiring them to purchase or maintain the underlying hardware and software infrastructure.
In the SaaS model, the SmartWiFi platform is hosted in the cloud, enabling centralizedmanagement,
real-time monitoring, and automatic updates. This approach simplifies deployment, reduces costs, and ensures scalability for large-scale deployments.
Reference: Huawei SmartWiFi Solution Guide
Cloud-Based Network Management Best Practices
Question #5
Which of the following product models is faceplate ONU?
- A . EG8240P
- B . EG8080P
- C . EG8145V5
- D . EG8020P
Correct Answer: B
B
Explanation:
The correct answer isEG8080P. Afaceplate ONUis a compact Optical Network Unit designed to be mounted on a wall or faceplate, typically used in Fiber-to-the-Room (FTTR) or Fiber-to-the-Desk (FTTD) scenarios. TheEG8080Pis specifically designed for such applications, providing high-speed internet, voice, and video services in a small form factor.
Other options:
EG8240P: A standard home gateway ONU, not a faceplate model. EG8145V5: A residential gateway ONU, not suitable for faceplate mounting. EG8020P: A business-class ONU, but not a faceplate model.
Reference: Huawei ONT/ONU Product Portfolio
Huawei FTTR Solution Documentation
B
Explanation:
The correct answer isEG8080P. Afaceplate ONUis a compact Optical Network Unit designed to be mounted on a wall or faceplate, typically used in Fiber-to-the-Room (FTTR) or Fiber-to-the-Desk (FTTD) scenarios. TheEG8080Pis specifically designed for such applications, providing high-speed internet, voice, and video services in a small form factor.
Other options:
EG8240P: A standard home gateway ONU, not a faceplate model. EG8145V5: A residential gateway ONU, not suitable for faceplate mounting. EG8020P: A business-class ONU, but not a faceplate model.
Reference: Huawei ONT/ONU Product Portfolio
Huawei FTTR Solution Documentation
Question #6
Huawei, as industry leader, ITU patent contribution No.1.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The statement is True. Huawei has consistently been a leader in contributing to international standards organizations such as the ITU (International Telecommunication Union). Huawei’s significant contributions to ITU standards, particularly in areas like optical transmission, access networks, and 5G, have positioned it as a top contributor in terms of patents and technical proposals. This leadership reflects Huawei’s commitment to innovation and its role in shaping global
telecommunications standards.
Reference: Huawei Annual Report on Standards Contributions
ITU-T Standards Contributions Database
A
Explanation:
The statement is True. Huawei has consistently been a leader in contributing to international standards organizations such as the ITU (International Telecommunication Union). Huawei’s significant contributions to ITU standards, particularly in areas like optical transmission, access networks, and 5G, have positioned it as a top contributor in terms of patents and technical proposals. This leadership reflects Huawei’s commitment to innovation and its role in shaping global
telecommunications standards.
Reference: Huawei Annual Report on Standards Contributions
ITU-T Standards Contributions Database
Question #7
Which of the following management systems can OptiXtrans DC908 support?
- A . NCE-T Lite
- B . CLI
- C . eSight
- D . WebGUI
- E . NCE
Correct Answer: B, D, E
B, D, E
Explanation:
The OptiXtrans DC908supports multiple management systems to ensure efficient operation and monitoring. Here’s an analysis of each option:
NCE-T Lite: The DC908 does not support NCE-T Lite, as this is a simplified version of the Network Cloud Engine (NCE) designed for smaller-scale deployments.
CLI (Command-Line Interface): The DC908 supports CLI for advanced configuration and troubleshooting tasks.
eSight: While eSight is a powerful network management system, it is not typically used for managing the DC908. Instead, the DC908 relies on NCE or WebGUI.
WebGUI: The DC908 provides aWeb-based Graphical User Interface (WebGUI) for intuitive and user-friendly management.
NCE (Network Cloud Engine): The DC908 integrates withNCEfor centralized control, automation, and intelligent O&M capabilities.
Thus, the correct answers areB (CLI), D (WebGUI), and E (NCE).
Reference: Huawei OptiXtrans DC908 Product Documentation
Huawei NCE and WebGUI Management Guide
B, D, E
Explanation:
The OptiXtrans DC908supports multiple management systems to ensure efficient operation and monitoring. Here’s an analysis of each option:
NCE-T Lite: The DC908 does not support NCE-T Lite, as this is a simplified version of the Network Cloud Engine (NCE) designed for smaller-scale deployments.
CLI (Command-Line Interface): The DC908 supports CLI for advanced configuration and troubleshooting tasks.
eSight: While eSight is a powerful network management system, it is not typically used for managing the DC908. Instead, the DC908 relies on NCE or WebGUI.
WebGUI: The DC908 provides aWeb-based Graphical User Interface (WebGUI) for intuitive and user-friendly management.
NCE (Network Cloud Engine): The DC908 integrates withNCEfor centralized control, automation, and intelligent O&M capabilities.
Thus, the correct answers areB (CLI), D (WebGUI), and E (NCE).
Reference: Huawei OptiXtrans DC908 Product Documentation
Huawei NCE and WebGUI Management Guide
Question #8
Which of the following networks can be supported by MS-OTN?
- A . SDH
- B . PKT
- C . OTN
Correct Answer: A, B, C
A, B, C
Explanation:
The correct answer includes all options: SDH, PKT, and OTN.MS-OTN (Multi-Service Optical Transport Network) is a versatile technology that supports multiple types of networks, making it ideal for converged transport solutions.
Here’s how MS-OTN supports each type of network:
SDH (Synchronous Digital Hierarchy): MS-OTN can carry legacy SDH traffic, ensuring backward compatibility with existing infrastructure while enabling gradual migration to modern technologies.
PKT (Packet): Supports packet-based services like Ethernet, IP, and MPLS, catering to the growing demand for high-speed data transmission.
OTN (Optical Transport Network): Provides efficient transport of large volumes of data over long distances, leveraging advanced features like wavelength division multiplexing (WDM) and forward error correction (FEC).
MS-OTN’s ability to integrate these technologies into a single platform reduces complexity, lowers costs, and improves network efficiency.
Reference: Huawei MS-OTN Solution White Paper
ITU-T G.709 Standards for OTN
A, B, C
Explanation:
The correct answer includes all options: SDH, PKT, and OTN.MS-OTN (Multi-Service Optical Transport Network) is a versatile technology that supports multiple types of networks, making it ideal for converged transport solutions.
Here’s how MS-OTN supports each type of network:
SDH (Synchronous Digital Hierarchy): MS-OTN can carry legacy SDH traffic, ensuring backward compatibility with existing infrastructure while enabling gradual migration to modern technologies.
PKT (Packet): Supports packet-based services like Ethernet, IP, and MPLS, catering to the growing demand for high-speed data transmission.
OTN (Optical Transport Network): Provides efficient transport of large volumes of data over long distances, leveraging advanced features like wavelength division multiplexing (WDM) and forward error correction (FEC).
MS-OTN’s ability to integrate these technologies into a single platform reduces complexity, lowers costs, and improves network efficiency.
Reference: Huawei MS-OTN Solution White Paper
ITU-T G.709 Standards for OTN
Question #9
What is the downstream bitrate of the GPON standard?
- A . 1 Gbps
- B . 10 Gbps
- C . 2.5 Gbps
- D . 2 Gbps
Correct Answer: C
C
Explanation:
TheGPON (Gigabit Passive Optical Network) standard, defined by the ITU-T G.984 specification, supports asymmetric data rates for upstream and downstream traffic.
Specifically:
Downstream Bitrate: 2.5 Gbps
Upstream Bitrate: 1.25 Gbps
The higher downstream bitrate reflects the typical usage pattern of internet services, where users consume more data (e.g., streaming videos) than they upload. GPON uses Time Division Multiplexing (TDM) to manage data transmission between the OLT and multiple ONUs.
For higher bandwidth requirements, advanced standards like XG-PON (10 Gbps downstream) or NG-PON2 (multi-wavelength support) are available.
Reference: ITU-T G.984 Standard – GPON Architecture
Huawei GPON Technical Documentation
C
Explanation:
TheGPON (Gigabit Passive Optical Network) standard, defined by the ITU-T G.984 specification, supports asymmetric data rates for upstream and downstream traffic.
Specifically:
Downstream Bitrate: 2.5 Gbps
Upstream Bitrate: 1.25 Gbps
The higher downstream bitrate reflects the typical usage pattern of internet services, where users consume more data (e.g., streaming videos) than they upload. GPON uses Time Division Multiplexing (TDM) to manage data transmission between the OLT and multiple ONUs.
For higher bandwidth requirements, advanced standards like XG-PON (10 Gbps downstream) or NG-PON2 (multi-wavelength support) are available.
Reference: ITU-T G.984 Standard – GPON Architecture
Huawei GPON Technical Documentation
Question #10
OptiXtrans E9600 series including: OptiXtrans E9624, OptiXtrans E9612, and OptiXtrans E9605.
- A . True
- B . False
Correct Answer: A
A
Explanation:
The statement is True. The OptiXtrans E9600 series includes multiple models, such as theE9624, E9612, andE9605, each designed for specific use cases in optical transmission networks.
Here’s an overview of the models:
OptiXtrans E9624: A high-capacity device used in backbone and core networks, supporting large-scale traffic aggregation and long-distance transmission.
OptiXtrans E9612: A mid-range device suitable for metro and regional networks, balancing capacity and cost-effectiveness.
OptiXtrans E9605: A compact device primarily used in OLA stations for optical signal amplification.
The modular design of the E9600 series allows operators to select the appropriate model based on their network requirements, ensuring optimal performance and scalability.
Reference: Huawei OptiXtrans E9600 Series Product Documentation
ITU-T G.709 Standards for OTN
A
Explanation:
The statement is True. The OptiXtrans E9600 series includes multiple models, such as theE9624, E9612, andE9605, each designed for specific use cases in optical transmission networks.
Here’s an overview of the models:
OptiXtrans E9624: A high-capacity device used in backbone and core networks, supporting large-scale traffic aggregation and long-distance transmission.
OptiXtrans E9612: A mid-range device suitable for metro and regional networks, balancing capacity and cost-effectiveness.
OptiXtrans E9605: A compact device primarily used in OLA stations for optical signal amplification.
The modular design of the E9600 series allows operators to select the appropriate model based on their network requirements, ensuring optimal performance and scalability.
Reference: Huawei OptiXtrans E9600 Series Product Documentation
ITU-T G.709 Standards for OTN