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Huawei H31-311 Online Practice Questions and Exam Preparation

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
    :Jan 12, 2026

Huawei H31-311 Online Questions & Answers

  • Question 1:

    A standard Ethernet frame should not be shorter than 64 bytes, which is determined by the ____ and the collision detection mechanism used.

  • Question 2:

    For devices that support multiple transmission rates and working modes, the ____ mechanism can be used to determine the optimal communication mode between two connected devices.

  • Question 3:

    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 4:

    A 1510 nm optical supervisory channel can be effectively amplified after it passes an EDFA.

    A. TRUE
    B. FALSE

  • Question 5:

    Both PDH and SDH have globally unified standards.

    A. TRUE
    B. FALSE

  • Question 6:

    Which of the following is the maximum number of OSN 3500 subracks that can be installed in a 2.2 m cabinet?

    A. 1
    B. 2
    C. 3
    D. 4

  • Question 7:

    When a bridge uses the IVL learning mode, the entry in the MAC address table is created according to the source MAC address and source port of the data frame. This entry is valid for all VLANs.

    A. TRUE
    B. FALSE

  • Question 8:

    Manual configuration will clear data on the NE side.

    A. TRUE
    B. FALSE

  • Question 9:

    A two-fiber ring topology consisting of three NEs is arranged in the counterclockwise sequence as A, B, and C. Services between A and C occupy the 48th VC-12 timeslot in the first VC-4 on the short path, and services between B and C also occupy the 48th VC-12 timeslot in the first VC-4 on the short path. In this case, which of the following is the subnet type of the ring protection?

    A. Unidirectional path protection ring
    B. SNCP ring
    C. Bidirectional MSP ring r
    D. All of the above

  • Question 10:

    Optical supervisory channels are intended for the supervisory of WDM optical transmission systems. In ITU-T recommendations, 1510 nm wavelengths at a ( ) rate are preferentially used.

    A. 64 kbit/s
    B. 192 kbit/s
    C. 2Mbit/s
    D. 576 kbit/s

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