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Huawei H31-331 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: OptiX WDM Hardware and Networking | 20% | - Common boards and functions of OSN 6800/8800 - Networking modes and application scenarios - Signal flow and optical power budget |
| Topic 2: Protection and Special Technologies | 15% | - Optical layer and electrical layer protection schemes - ALC, IPA, APE principles and configuration |
| Topic 3: Data Configuration and Commissioning | 25% | - Electrical layer ODUk cross-connection - Optical layer service configuration - Common system configuration - Equipment commissioning and parameter adjustment |
| Topic 4: Maintenance, Testing and Troubleshooting | 20% | - Fault positioning and troubleshooting - Alarm analysis and signal flow - Performance and optical parameter testing - Routine maintenance procedures |
| Topic 5: OTN and WDM Basic Principles | 20% | - Optical layer and electrical layer technologies - OTN architecture and frame structure - WDM system principles and classification |
Huawei Certified Network Professional-Building Carrier OTN Transmission Network Sample Questions:
Question 1
Which of the following is a description of the normative layout of cables? Which one is wrong?
A. The -48V power cable is equipped with a black cable, the power ground wire is a blue cable, and the PGND protection ground wire is a yellow-green or yellow cable.
B. Try to use a large bending radius (radius greater than 60mm) when turning the cable, and do not tie the cable at the corner.
C. The bending radius of the fiber placement should not be less than 40mm
D. The distance between the power cable, ground wire and signal cable outside the cabinet is more than
30mm.
Question 2
Which of the following descriptions is wrong when creating an ALC link node in a single station?
A. When the power detection unit is an OBU1, OBU2, or HBA board, if the ALC function is used, the
"adjustable attenuation unit" must be configured.
B. The "Power Detection Unit" and "Adjustable Attenuation Unit" of the first node are recommended to be set to "None".
C. "Node Gain Compensation Offset" can use the default value "0.0".
D. When the "adjustable attenuation unit" is a 12OAU1, 12OBU1 or 12OBU2 board, its VO port must be configured as an "adjustable attenuation unit".
Question 3
Which of the following instruments can measure the average transmitted optical power on the OTU board's customer side or wavefront side? (multiple choice)
A. Spectrum Analyzer
B. Optical power meter
C. Multimeter
D. SDH Analyzer
Question 4
The path method OCH creation may be unsuccessful. (multiple choice)
A. The device side and NE side time are not synchronized.
B. The wavelength configuration of the source and sink boards is inconsistent.
C. The data on the device side and the NE side are not synchronized.
D. The service layer path is missing.
Question 5
After you create an NE, you cannot log in. What are the possible reasons? (multiple choice)
A. The communication between the NMS and the NE is abnormal.
B. The NE user password is incorrect.
C. The NE user is logged in.
D. The time between the NE side and the NMS side is not synchronized.
Solutions:
| Question 1 Answer: A | Question 2 Answer: D | Question 3 Answer: A,B | Question 4 Answer: B,C,D | Question 5 Answer: A,B,C |






