Huawei H31-311 Exam (page: 2)
Huawei HCIA-Transmission V2.0
Updated on: 12-Feb-2026

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When the transmit end detects that the b6-b8 of the K2 byte is 110, it indicates that the () alarm is reported at the transmit end.

  1. MS-AIS
  2. R-LOS
  3. R-LOF
  4. MS-RDI

Answer(s): A,B,C



Which of the following statements about U2000 license is incorrect?

  1. Each license file corresponds to the equipment serial number (ESN) of one U2000 computer, and therefore can be used only on the corresponding computer.
  2. Formal U2000 license varies depending on operating system platforms. You must apply for a U2000 license based on the specific operating system.
  3. The U2000 license file is named in the "xxxxxxx.dat" format.
  4. Do not modify license files. Otherwise, the license files will fail.

Answer(s): B



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

  1. TRUE
  2. FALSE

Answer(s): A



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. (Multiple Choice)

  1. Phase
  2. Frequency
  3. Polarization state
  4. Amplitude

Answer(s): A,C,D



Which of the following is not a condition for triggering multiplex section protection (MSP)?

  1. The MS-AIS signal is detected.
  2. AU-AIS is detected.
  3. R-LOS is detected.
  4. R-LOF is detected.

Answer(s): B



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