Free H31-331 Exam Braindumps (page: 5)

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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



Which of the following statements about the safe use of fiber is correct? (multiple choice)

  1. When installing and maintaining the optical interface board and optical fiber, do not look into the optical interface or fiber connector.
  2. When loopback testing the optical port with pigtails, in order to prevent the laser beam from being too powerful to damage the device, it is necessary to add a fixed optical attenuator.
  3. The recommended dust cap is made of soft rubber material. It is not easy to absorb dust and debris, easy to clean, and has good dustproof effect.
  4. For a board that can be equipped with an optical attenuator, it is recommended to add an optical attenuator to the receiving optical port.
  5. Before using the optical adapter dedicated magnifier, the optical fiber should be inspected with an optical power meter to ensure that there is no laser beam in the fiber.

Answer(s): A,B,D,E






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