Learn with Huawei : H31-311_V2.5 training material for 100% pass
Updated: Aug 13, 2026
No. of Questions: 750 Questions & Answers with Testing Engine
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Huawei H31-311_V2.5 Exam Overview:
| Certification Vendor: | Huawei |
| Exam Name: | HCIA-Transmission V2.5 |
| Exam Number: | H31-311_V2.5 |
| Passing Score: | 600/1000 |
| Available Languages: | English, Chinese |
| Exam Format: | Multiple Choice, Multiple Answer, True/False |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 60 |
| Related Certifications: | HCIP-Transmission HCIE-Transmission |
| Exam Price: | USD 150 |
| Exam Duration: | 90 minutes |
| Sample Questions: | Huawei H31-311_V2.5 Sample Questions |
| Exam Way: | Online/Offline at Pearson VUE test centers |
| Pre Condition: | No formal prerequisites required; basic knowledge of telecommunications recommended |
| Official Syllabus URL: | https://e.huawei.com/en/trainingcert/certified-enterprise-product/ict-coe |
Huawei H31-311_V2.5 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Packet Transport Network (PTN) | 15% | - PTN Protection Mechanisms - MPLS-TP Principles - QoS Mechanisms |
| SDH/SONET Technology | 20% | - SDH Frame Structure - SDH Equipment and Interfaces - SDH Protection Mechanisms - SDH Multiplexing Principles |
| Huawei Transmission Products Overview | 15% | - OSN 1800 Series - OSN 3800/5800/6800/8800 Series - Product Portfolio and Positioning |
| Optical Communication Basics | 10% | - Optical Fiber Types and Characteristics - DWDM Fundamentals - Optical Communication Principles |
| OTN Technology | 25% | - WDM Principles - OTN Protection - OTN Architecture and Structure - ODU and OTU Mapping - ROADM Technology |
| Transmission Network Maintenance | 15% | - Network Commissioning - Typical Troubleshooting - Performance Monitoring - Common Alarm Analysis |
Huawei HCIA-Transmission V2.5 Sample Questions:
1. In OSN550, the CX slot contains a function board integrating the system control and communication (SCC) unit, the cross-connect unit and the clock unit. There are many types of function boards according to the functions and access functions provided by OSN550.
A) False
B) True
2. For the B1 byte, which of the following statements are correct? (Multiple choice)
A) Descramble the signal and then verify it
B) The AAB1 byte uses the BIP-8 verification method
C) Up to 8 error blocks can be detected
D) When the local end detects a bit error, it does not send a report message to the other end.
3. The refractive index of the core n1 () and the refractive index of the cladding n2 are necessary conditions for the transmission of optical signals in optical fibers.
A) Equal to
B) Greater than
C) less than
4. CWDM is divided into two systems: () wavelength system and () wavelength system.
5. Which of the following can be configured as the monitoring time for network element performance events?
A) Same as the current time of NE
B) Earlier than the current time
C) Any time
D) Later than the current time
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: B,C,D | Question # 3 Answer: B | Question # 4 Answer: Only visible for members | Question # 5 Answer: D |
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