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Updated: Sep 08, 2026
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Huawei H31-311-ENU Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | Huawei Certified ICT Associate - Transmission |
| Exam Number: | H31-311-ENU |
| Real Exam Qty: | 60-70 |
| Exam Format: | True/False, Scenario-based questions, Multiple choice questions, Single choice questions |
| Exam Duration: | 90 minutes |
| Passing Score: | 600/1000 |
| Related Certifications: | HCIP-Transmission HCIA HCIE-Transmission |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Chinese |
| Exam Price: | Approx. 200 USD (varies by region) |
| Recommended Training: | HCIA-Transmission Training (Huawei Talent Development) |
| Exam Registration: | Huawei Certification Official Portal |
| Sample Questions: | Huawei H31-311-ENU Sample Questions |
| Exam Way: | Online proctored exam or authorized test center |
| Pre Condition: | Basic knowledge of ICT and telecommunications concepts is recommended; no mandatory prerequisite certification. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/#/cert |
Huawei H31-311-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Transmission Fundamentals | - Digital communication principles - Basic concepts of transmission systems |
| WDM Systems | - WDM principles and architecture - DWDM/CWDM applications |
| Transmission Network Operation & Maintenance | - Network performance monitoring - Fault detection and troubleshooting |
| Huawei Transmission Products | - Basic configuration and management - Huawei optical transport equipment overview |
| SDH and OTN Technologies | - OTN fundamentals and multiplexing - SDH architecture and frame structure |
| Optical Fiber Communication | - Optical transmission impairments and loss - Optical fiber types and characteristics |
Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) Sample Questions:
In the 2.5G MSP ring consisting of four MSTP sites, when a protection switching occurs, which of the following statements about the alarm reporting is correct?
- A. The APS-INDI alarm is reported on the line board.
- B. The APS-INDI alarm is reported on the system control board.
- C. The APS-INDI alarm is reported on the XCS board.
- D. The PS alarm is reported on the tributary board.
The frame structure of ODU4 is four times that of ODU1.
- A. FALSE
- B. TRUE
Which of the following operations may interrupt NE services? (Multiple Choice)
- A. Searching for trails
- B. Downloading NE data
- C. Searching for protection subnets
- D. Deactivating trails
Which of the following can be the center wavelengths of the pump sources in an EDFA? (Multiple Choice)
- A. 1510 nm
- B. 1480 nm
- C. 980 nm
- D. 1310 nm
When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported? (Multiple Choice)
- A. TU-AIS
- B. R-LOS
- C. BD STATUS
- D. APSJNDI
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