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The questions for H19-315 were last updated on Apr 1, 2025.
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Which of the following optical modules are used in commercial cases currently?
Optical modules are categorized based on their transmission distance and power budget. The most commonly used classes in commercial deployments are:
Class B+:Supports distances up to 20 km and is widely used in urban and suburban areas.
Class C+:Supports distances up to 40 km and is suitable for medium-range deployments.
Class D:Supports distances up to 60 km and is ideal for long-haul connections in remote areas.
ClassesEandFare either outdated or not commercially viable due to their limited use cases.
ITU-T G.984 Standard - Optical Module Specifications
Huawei Optical Module Product Guide
Which of the following networks can be supported by MS-OTN?
MS-OTN (Multi-Service Optical Transport Network)is a versatile technology that supportsmultiple 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.
ITU-T G.709 Standard - OTN Specifications
Huawei MS-OTN Solution Guide
Huawei's OptiXtrans DC908 product is able to support 400GE service.
TheOptiXtrans 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.
Huawei OptiXtrans DC908 Product Datasheet
Huawei 400GE Service Deployment Guide
Which board on OptiXtrans DC908 can support 400G/A?
The correct answer isMD02A. TheMD02A boardin theOptiXtrans DC908platform supports400G per wavelength, enabling high-capacity data transmission for backbone and core networks.
Key features of the MD02A board include:
High-Speed Transmission:Supports data rates up to400G per wavelength, leveraging advanced modulation techniques like DP-16QAM.
Flexibility:Compatible with various network architectures, including OTN, WDM, and Ethernet.
Scalability:Can be integrated into existing networks to boost capacity without requiring a complete overhaul.
Efficiency:Optimizes spectral efficiency, maximizing the utilization of available fiber resources.
Other options:
MD02:An earlier version of the board, typically supporting lower data rates.
MS04:Focuses on mid-range applications, not 400G.
N602:Designed for access networks rather than high-speed backbone transmission.
Huawei OptiXtrans DC908 Product Documentation
ITU-T G.709 Standards for OTN
In which of the following scenarios can OSN 9800 be used?
The correct answer includes all options:Safe City, ISP, Campus, Electrical Grid, and Railway. TheHuawei 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.
Huawei OSN 9800 Product Documentation
ITU-T G.709 Standards for OTN
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