Huawei H31-311 Online Practice Questions and Exam Preparation

Huawei H31-311 Online Questions & Answers

• Question 121:

  During service configuration, there are two timeslot modes. Huawei uses the interleaved timeslot mode by default.

  A. TRUE
  B. FALSE
  B. FALSE

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• Question 122:

  PDM uses the polarization beam splitter to divide the laser into two perpendicular directions: x and y.

  A. TRUE
  B. FALSE
  A. TRUE

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• Question 123:

  An optical amplifier unit compensates for line loss and extends transmission distance. Connecting multiple optical amplifier units in cascading mode can infinitely extend transmission distance of a system.

  A. TRUE
  B. FALSE
  B. FALSE

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• Question 124:

  Which of the following statements about extended ECC is incorrect?

  A. Extended ECC is classified into automatic extended ECC and extended ECC in specified mode.
  B. Automatic extended ECC indicates using a straight-through cable to connect the Ethernet ports of two NEs.
  C. Extended ECC in specified mode indicates that the server and client need to be specified.
  D. Automatic extended ECC can be enabled on a maximum of four NEs. In manual extended ECC mode, each server can be connected to a maximum of three clients.
  D. Automatic extended ECC can be enabled on a maximum of four NEs. In manual extended ECC mode, each server can be connected to a maximum of three clients.

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• Question 125:

  SES: There are 5% or more than 5% bit error blocks or at least one defect (OCI/AIS/LCKAAE/LTCA1M/PLM) within one second.

  A. TRUE
  B. FALSE
  B. FALSE

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• Question 126:

  Transmitting test frames affects services.

  A. True
  B. False
  A. True

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• Question 127:

  The PRBS can be used to test whether an SDH service is normal and whether the protection switching function is normal.

  A. TRUE
  B. FALSE
  A. TRUE

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• Question 128:

  Which of the following is the multiplexing mode of SDH?

  A. Flexible mapping
  B. Asynchronous multiplexing
  C. Flexible mapping and asynchronous multiplexing
  D. Flexible mapping and synchronous multiplexing
  D. Flexible mapping and synchronous multiplexing

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• Question 129:

  The coherent receiver technology uses the local oscillator laser that has the same frequency as received signals to perform coherent processing and recovers the ( ) information from the received signals. (Choose three)

  A. Phase
  B. Frequency
  C. Polarization state
  D. Amplitude
  A. Phase
  C. Polarization state
  D. Amplitude

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• Question 130:

  Which of the following logical function modules is used to generate R-LOS alarms?

  A. RST
  B. MST
  C. MSA
  D. SPI
  D. SPI

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