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Updated: Aug 08, 2026
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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 |
| Exam Format: | Multiple Choice, Multiple Answer, True/False |
| Real Exam Qty: | 60 |
| Available Languages: | English, Chinese |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Passing Score: | 600/1000 |
| Related Certifications: | HCIP-Transmission HCIE-Transmission |
| Exam Price: | USD 150 |
| 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 |
|---|---|---|
| SDH/SONET Technology | 20% | - SDH Equipment and Interfaces - SDH Frame Structure - SDH Multiplexing Principles - SDH Protection Mechanisms |
| Huawei Transmission Products Overview | 15% | - OSN 1800 Series - Product Portfolio and Positioning - OSN 3800/5800/6800/8800 Series |
| Packet Transport Network (PTN) | 15% | - QoS Mechanisms - PTN Protection Mechanisms - MPLS-TP Principles |
| OTN Technology | 25% | - OTN Protection - WDM Principles - ROADM Technology - OTN Architecture and Structure - ODU and OTU Mapping |
| Optical Communication Basics | 10% | - DWDM Fundamentals - Optical Fiber Types and Characteristics - Optical Communication Principles |
| Transmission Network Maintenance | 15% | - Performance Monitoring - Common Alarm Analysis - Typical Troubleshooting - Network Commissioning |
Huawei HCIA-Transmission V2.5 Sample Questions:
1. Which of the following is the main advantage of SDH? (Multiple choice)
A) High compatibility
B) Powerful OAM
C) Synchronous Multiplexing
D) Standard interface
2. Which of the following alarms will not generate corresponding alarms?
A) HP-TIM
B) R-LOS
C) TU-AIS
D) MS-AIS
3. In the system control unit, which of the following databases will not lose data after a power failure?
(Multiple choice)
A) FDB1
B) MDB
C) FDBO
D) DRDB
4. Two beams of light that meet the coherence condition are called coherent light. Which of the following options are referred to as the coherence condition here? (Multiple choice)
A) Vibration direction is the same
B) Same vibration frequency
C) The vibration amplitude is the same
D) The phase is the same or the phase difference remains constant
5. Which of the following options does the 802.1Q tag header contain? (Multiple choice)
A) TPID
B) TCI
C) Type
D) FCS
Solutions:
| Question # 1 Answer: A,B,C,D | Question # 2 Answer: B | Question # 3 Answer: A,C | Question # 4 Answer: A,B,D | Question # 5 Answer: A,B |
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