Huawei H31-341_V2.5 Exam (page: 1)
Huawei HCIP-Transmission V2.5
Updated on: 12-Feb-2026

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Modulation is a process where the information of a signal source is processed and added to a carrier to make the information suitable for channel transmission. It is a technology where a carrier changes with a signal.

  1. TRUE
  2. FALSE

Answer(s): A



Which of the following are not features of WDM network expansion?

  1. Increased network complexity
  2. No impact on existing services during the expansion
  3. Maximized protection of existing investment
  4. It takes a long time.

Answer(s): A,D



Which of the following is not an advantage of WDM?

  1. Transparent transmission of data
  2. Various overheads
  3. Ultra-large capacity and ultra-long haul transmission
  4. Flexible, economical, and reliable networking

Answer(s): D



Which of the following features is used by a laser to coherently receive optical signals and restore the amplitude, phase, and state of polarization information from the received signals?

  1. Same oscillation direction
  2. Same amplitude
  3. Opposite oscillation directions
  4. Same frequency

Answer(s): D



Fill in Blank
Wavelength division multiplexing (WDM) refers to a technology that transmits optical signals at____over one optical fiber. (Enter only lowercase letters.)

  1. Difference

Answer(s): A



QPSK modulation reduces OSNR requirements and fiber non-linear effects, and Improves dispersion tolerance and PMD tolerance.

  1. TRUE
  2. FALSE

Answer(s): A



Which of the following statements about the TMB1AST2 board are true?

  1. The TM1 optical port must be connected to the TMI1 optical port.
  2. The TMB1AST2 board supports the IEEE 1588v2 clock processing and OTDR functions.
  3. When the board is working with a DFIU03/DFIU04 board, the OSC optical port must be configured with an optical module that supports the 1511 nm wavelength.
  4. When the board is working with a DSFIU01/DSFIU02 board, the TM1/RM1 optical port must be configured with an optical module that supports the 1511 nm wavelength, and the TM2/RM2 optical port must be configured with an optical module that supports the 1491 nm wavelength.

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



DRAG DROP (Drag and Drop is not supported)
Drag the correct answer to the corresponding number in the picture.



  1. See Explanation for the Answer.

Answer(s): A

Explanation:



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