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HCNP-MSTP Transmission Exam (H31-321) - Huawei Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
140 Total Questions
1
Question
Which of the following statements are true about fiber-shared virtual path protection?
Options
A The VC-4 timeslots of an optical path allocated to two MSP rings must be different.
B The VC-4 timeslots of an optical path allocated to two SNCP rings must be different.
C The VC-4 timeslots of an optical path allocated to an MSP ring and those allocated for an SNCP ring must be different.
D When the VC-4 timeslots of an optical path allocated to two SNCP rings are the same, services on the VC-4 timeslots have double protection.
E When the VC-4 timeslots of an optical path allocated to two MSP rings are the same, services on the VC-4 timeslots have double protection.
F When the VC-4 timeslots of an optical path allocated to both an MSP ring and an SNCP ring are the same, services on the VC-4 timeslots have double protection.
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2
Question
Which of the following is true about pointer justification?
Options
A When an NE receives eight consecutive NDFs, the NE reports the AU_LOP alarm, indicating loss of the AU pointer.
B The justification step of AU and TU pointers is 1 byte.
C When the rate (frame frequency) of VC-4 is higher than that of the AU-4, a positive pointer justification will occur.
D If the local NE detects an TU pointer justification event in the lower order path, pointer
justification has occurred on the local NE.
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3
Question
Two SNCP rings are tangent. How many SCNP protection groups must be configured on the tangent node to achieve protection for inter-ring services, assuming one fiber cut on two rings or one fiber cut per ring?
Options
A 4
B 2
C 8
D 6
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4
Question
A ring is configured with STM-64 two-fiber bidirectional MSP. The port rate of the ring is 10 Gbit/s.
Options
A TRUE
B FALSE
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5
Question
NG-SDH equipment supports MS-shared protection. Which of the following are false about timeslot mapping between the working path and protection path?
Options
A Working path 1: l#VC-4~ll#VC-4; Protection path 1: 33#VC-4~43#VC-4
B Working path 2: 17#VC-4~20#VC-4; Protection path 2: 49#VC-4~52#VC-4
C Working path 1: l#VC-4~4#VC-4; Protection path 1: 5#VC-4~8#VC-4
D Working path 2: 4#VC-4~7#VC-4; Protection path 2: 9#VC-4~12#VC-4
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