Huawei H31-331 Exam
Huawei Certified Network Professional-Building Carrier OTN Transmission Network (Page 4 )

Updated On: 7-Feb-2026

The split ratio of the MON port to the OUT port is 1:99. How much dB is the MON power lower than the OUT port?
Which of the following is correct?

  1. 10dB
  2. 15dB
  3. 20dB
  4. 25dB

Answer(s): C



For WDM devices, the smaller the channel spacing, the smaller the frequency offset allowed by the center frequency.

  1. True
  2. False

Answer(s): A



Which of the following conditions does not trigger the customer side 1+1 protection automatic switching?

  1. OTUk_TIM.
  2. Hard reset of the board.
  3. OSC_LOS
  4. ODUk_PM_LCK

Answer(s): C



Monochromatic light does not produce dispersion.

  1. True
  2. False

Answer(s): B



The OptiX OSN 8800 electrical layer cross supports GE, ANY, ODU1, and ODU2 service scheduling.

There are two modes: distributed crossover and centralized crossover.

  1. True
  2. False

Answer(s): B






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