H31-311 Exam Details

  • Exam Code
    :H31-311
  • Exam Name
    :HCIA-Transmission V2.5
  • Certification
    :Huawei Certifications
  • Vendor
    :Huawei
  • Total Questions
    :256 Q&As
  • Last Updated
    :May 25, 2026

Huawei H31-311 Online Questions & Answers

  • Question 191:

    On the NMS, the NE performance monitoring time is set to () minutes and () hours,

    A. 15, 12
    B. 15, 24
    C. 30, 12
    D. 30, 24

  • Question 192:

    Which of the following is the function of TCM overheads in ODUk signals?

    A. Channel supervisory overhead
    B. Path trace identifier overhead
    C. Tandem connection monitoring overhead
    D. General communication channel overhead

  • Question 193:

    Which of the following communication protocols are used for DCN management on Huawei devices? (Choose three)

    A. HWECC
    B. TCP/IP
    C. PTP D. OSI

  • Question 194:

    Which of the following are prerequisites for self-healing networks? (Chosoe three)

    A. Backup routes
    B. Unified management by the NMS
    C. Intelligent network nodes
    D. Powerful cross-connect capabilities

  • Question 195:

    The error correction capability of FEC is measured with the encoding gain. Which of the following statements about the encoding gain is incorrect?

    A. When the BER is constant, the OSNR saved by the correction encoding is called encoding gain.
    B. The error correction capability of FEC increases with the encoding gain.
    C. The encoding gain of the inband FEC is larger than that of the outband FEC.
    D. The encoding gain of AFEC is larger than that of FEC.

  • Question 196:

    After the U2000 delivers configuration data to an NE, if the verification fails on the SCC board, the NE enters the installation state.

    A. TRUE
    B. FALSE

  • Question 197:

    When ODUk 5NCP is configured, common WDM services can be converted into SNCP services, but SNCP services cannot be converted into common WDM services.

    A. TRUE
    B. FALSE

  • Question 198:

    When an OTU board works with an OLP board, the optical power difference cannot be used as a trigger condition for intra-board 1+1 protection switching.

    A. TRUE
    B. FALSE

  • Question 199:

    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. (Choose three)

    A. MS-AIS
    B. R-LOS
    C. R-LOF
    D. MS-RDI

  • Question 200:

    Which of the following modulation technologies provides the best wavelength stability performance?

    A. Indirect modulation
    B. Direct modulation
    C. M-Z modulation
    D. EA modulation

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