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Huawei H31-331 exam : Huawei Certified Network Professional-Building Carrier OTN Transmission Network

H31-331 Exam Simulator
  • Exam Code: H31-331
  • Exam Name: Huawei Certified Network Professional-Building Carrier OTN Transmission Network
  • Updated: Sep 14, 2026
  • Q & A: 180 Questions and Answers
  • Huawei H31-331 Q&A - in .pdf

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Huawei H31-331 Exam Syllabus Topics:

SectionObjectives
Topic 1: Advanced Optical Network Technologies- Next-generation converged transport networks
- ASON/GMPLS principles in transport networks
- IP over OTN integration concepts
Topic 2: Optical Fiber Transmission Technologies- Optical amplification (EDFA, Raman)
- DWDM system principles and components
- Dispersion and impairment management
Topic 3: Fundamentals of Optical Transport Networks (OTN)- OTN framing and overhead structure
- Digital wrapper and encapsulation principles
- OTN architecture and layered structure (ODUk/OTUk)
Topic 4: Operation, Maintenance, and Troubleshooting- Alarm analysis and fault localization
- Routine maintenance procedures
- Performance monitoring and KPIs
Topic 5: Carrier-Class OTN Equipment and Huawei Solutions- Service mapping and cross-connect principles
- Board types and functional modules
- Huawei OptiX transmission platform overview
Topic 6: OTN Network Planning and Design- Network topology design (ring, mesh, linear)
- Protection schemes (1+1, 1:1, SNCP-like protection)
- Capacity planning and wavelength allocation

Huawei Certified Network Professional-Building Carrier OTN Transmission Network Sample Questions:

Question #1

Regarding POWER_FAIL, which of the following statements is wrong?

  • A. If the alarm is reported on the board of the non-master board, the main power supply in the board fails and the backup power fails. This will cause service interruption.
  • B. If the alarm is reported on the board that is not the main control board, the main power supply in the board is invalid and the backup power supply is normal. This will cause the active/standby power supply to be switched without affecting services.
  • C. If the alarm is reported on the PIU board, it indicates that the subrack input power supply voltage is abnormal and the power supply power module is faulty.
  • D. If the alarm is reported on the main control board, the system time will be lost after power failure, and the network data will be lost within 30 minutes.
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #2

What are the prerequisites for creating a single station optical crossover? (multiple choice)

  • A. Configure the optical power adjustment mode to "manual"
  • B. The creation of the internal logic fiber of the single station on the network management system has been completed.
  • C. Create a single station optical crossover to ensure that the wavelength used for optical crossover is not occupied by the single board optical crossover.
  • D. Configured boundary ports
Reveal Solution  Discussion  0

Correct Answer: B,C,D  🗳️

Question #3

Which of the following boards does not support in-board 1+1 protection.

  • A. OTU
  • B. SCS
  • C. OLP
  • D. DCP
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #4

In the wavelength division 40G network, the OSN 8800 can be used to implement the electrical layer scheduling of the ODU3 particles, and the 40G OTU3 service can be decomposed into four ODU2s for scheduling, and 40G sub-wavelength scheduling is supported.

  • A. True
  • B. False
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #5

Which of the following statements about Loopback #9 is wrong?

  • A. Pay attention to the use of fixed or adjustable light decay during loopback operation
  • B. Loopback operation will affect normal business. It is recommended to use when traffic is small.
  • C. When loopback operation, there is no need to pay attention to whether the dispersion compensation meets the system requirements.
  • D. The loopback method is suitable for the range of known faults. The fault range is divided into two sections and excluded separately. The faults it can eliminate can be board failures, line faults.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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