- Exam Code: H31-311_V2.5
- Exam Name: HCIA-Transmission V2.5
- Updated: Sep 03, 2026
- Q & A: 750 Questions and Answers
Huawei HCIA-Transmission V2.5 : H31-311_V2.5 exam
PDF Version DemoAbout Huawei HCIA-Transmission V2.5 : H31-311_V2.5 Exam Questions
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Huawei H31-311_V2.5 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Huawei Transmission Products Overview | 15% | - OSN 3800/5800/6800/8800 Series - Product Portfolio and Positioning - OSN 1800 Series |
| Packet Transport Network (PTN) | 15% | - QoS Mechanisms - PTN Protection Mechanisms - MPLS-TP Principles |
| Transmission Network Maintenance | 15% | - Network Commissioning - Typical Troubleshooting - Common Alarm Analysis - Performance Monitoring |
| Optical Communication Basics | 10% | - Optical Communication Principles - Optical Fiber Types and Characteristics - DWDM Fundamentals |
| OTN Technology | 25% | - ROADM Technology - OTN Protection - ODU and OTU Mapping - WDM Principles - OTN Architecture and Structure |
| SDH/SONET Technology | 20% | - SDH Equipment and Interfaces - SDH Frame Structure - SDH Multiplexing Principles - SDH Protection Mechanisms |
Huawei HCIA-Transmission V2.5 Sample Questions:
Question 1
Which of the following descriptions about the slot settings of the OSN 6800 subrack is wrong?
A. When the IU17 slot is not configured with SCC, the OTU board can be inserted to provide service cross-connection function
B. U9 and IU10 slots can be used for cross-connection boards XCS. Each XCS can independently support cross-connection of all services between slots.
C. Slots IU17 and IU18 can be used for the main control board SCC. Each SCC can independently support subrack management
D. IU19 and IU20 are fixed for inserting the power access board PIU. Each PIU can independently support the sub-rack power supply.
Question 2
Arrayed waveguide grating optical wavelength division multiplexing device has the advantages of small wavelength spacing, large number of channels, and flat passband. It is very suitable for use in ultra-high-speed, large-capacity wavelength division multiplexing systems.
A. False
B. True
Question 3
Which of the following alarms are reported by the peer end when a bit error is detected in the B2 byte?
A. MS-BBE
B. RS-BBE
C. MS-AIS
D. MS-FEBBE
Question 4
When the ACT indicator light of the SDH board is off, it means that the board has a hardware failure and cannot be used.
A. False
B. True
Question 5
Which of the following layers define the protocols that control the network layer? The protocols at this layer apply to logical links, that is, end-to-end connections between two devices.
A. Network layer
B. Application layer
C. Transport layer
D. Data Link Layer
Solutions:
| Question 1 Answer: A | Question 2 Answer: B | Question 3 Answer: D | Question 4 Answer: A | Question 5 Answer: C |
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