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Updated: Sep 28, 2026
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Huawei H12-931-ENU Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | Huawei Certified Internetwork Expert-Transmission (Written) V2.0 |
| Exam Number: | H12-931-ENU |
| Real Exam Qty: | 60 |
| Exam Duration: | 90 minutes |
| Related Certifications: | HCIP-Transmission HCIE-Transmission Lab |
| Exam Price: | 300 USD |
| Passing Score: | 600 / 1000 |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Chinese |
| Exam Format: | Single-choice, True/False, Short answer, Case analysis, Multiple-choice |
| Recommended Training: | Huawei Learning Services HCIE-Transmission V2.0 Official Training |
| Exam Registration: | Pearson VUE Registration Huawei Certification Portal |
| Sample Questions: | Huawei H12-931-ENU Sample Questions |
| Exam Way: | Proctored exam: in-person at authorized test centers or online remote proctoring via Pearson VUE |
| Pre Condition: | No mandatory prerequisites; HCIP-Transmission level knowledge and 3–5 years of transmission network experience strongly recommended |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification/exam/h12-931 |
Huawei H12-931-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| All-Optical & Turbo WDM | 5% | - OXC and all-optical switching - Turbo WDM architecture and applications |
| Fiber Sensing & Troubleshooting | 8% | - End-to-end troubleshooting - Distributed fiber sensing principles - Alarm analysis and fault location |
| Transmission Network Products | 4% | - Cabinets, subracks and common boards - Overview and application scenarios |
| NG WDM Network Planning & Design | 6% | - Design process and elements - DCN planning and optimization |
| Optical-layer ASON Configuration | 3% | - Control plane management - Diamond/Silver/Copper service creation |
| NHP & OSU Technology | 4% | - OSU features and scenarios - NHP and OSU principles |
| Electrical-layer ASON Configuration | 3% | - Control plane management - Service creation and maintenance |
| MS-OTN Service Configuration | 6% | - OTN, SDH, EoO, EoS services - MPLS-TP and OSU services |
| High-Speed & ULH Technologies | 7% | - Coherent and extended band transmission - ULH solutions and deployment |
| Clock Synchronization & DCI Solutions | 6% | - DCI architecture and deployment - Synchronization technologies |
| Transmission Network QoS | 4% | - QoS and HQoS application - QoS principles and technologies |
| OTN Device Deployment & Commissioning | 6% | - Initial configuration - NE commissioning and data backup - OSC and optical power commissioning |
| ASON Principles & Applications | 6% | - Architecture, protocols and functions - Typical application scenarios |
| iMaster NCE-T | 6% | - System overview and functions - Routine O&M management |
| SDH-to-OTN Upgrade & Network Reconstruction | 10% | - Protection reconstruction - Upgrade solutions and implementation - OTN node and capacity expansion |
| Optical Doctor & Fiber Doctor | 6% | - Configuration and fault detection - System composition and principles |
Huawei Certified Internetwork Expert-Transmission Sample Questions:
Regarding the M40 and D40 channel isolation indicators of OSN 8800/6800 devices, which of the following statements is correct? () (multiple choice)
- A. M40 adjacent channel isolation> 22dB
- B. D40 adjacent channel isolation> 22dB
- C. FIU's IN-TM and IN-TC isolation are both >40db
- D. D40 non-adjacent channel isolation> 25dB
- E. The isolation of SFIU's LINE1-OSC1 and LINE1-OSC2 are both ≥65db
- F. M40 non-adjacent channel isolation> 25dB
Correct Answer: A,D,F 🗳️
In the process of creating an upgrade task, the following statement is wrong
- A. Check "Adopt package customization. The software added by the user is a partial package, that is, matching according to the single board on the network element can improve the efficiency of adding."
- B. For gateway network elements, if you check the "If the network element to be loaded is a gateway network element, it is mandatory to select FTP/SFTP protocol loading" configuration item, you need to configure an FTP/SFTP server on the network management server to improve the loading speed.
- C. The upgrade operator must use the "admin" level user for the health check, otherwise some check items will fail to execute and reduce the check efficiency.
- D. "Forced Parallel Activation". In this activation mode, all groups are activated in parallel, which will cause business interruption.
Correct Answer: C 🗳️
Colorless & Directionless site configuration of a 100G coherent system, the line dimension adopts WSM9+RDU9, and the local drop configuration can adopt ()? (Multiple choice)
- A. WSD9+TD20 drop
- B. WSD9+OA+RDU9 drop
- C. WSD9+OA+D40 drop
- D. WSD9 drop directly
Correct Answer: A,B,D 🗳️
Which of the following abnormal conditions will trigger the TPS protection switching of the PTN equipment?
- A. The business interface of the working interface board is loose
- B. Business interruption caused by non-hardware reasons on the work processing board
- C. The working interface board is offline
- D. The work processing board is offline
Correct Answer: D 🗳️
The following description of OLP optical line protection is wrong:
- A. Switching conditions: MUT_LOS/POWER-DIFF-OVER;
- B. APS protocol; no need for the whole network protocol;
- C. When configuring protection, the transceiver of the first port (TO1/RI1) can be configured to work or protection;
- D. Protection principle: dual-transmit and selective-receive, single-ended switching, non-recovery by default;
Correct Answer: C 🗳️
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