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Huawei Certified Network Professional-Building Carrier OTN Transmission Network Exam (H31-331) - Huawei Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
180 Total Questions
1
Question
The function of the battery of the SCC board is to ensure that the configuration information is not lost

when the SCC is powered off. Therefore, the jumper cap should be used to short-circuit the battery jumper during normal use or when not in use, so that the battery can be powered normally.
Options
A False
B True
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2
Question
During the normal operation of the network, the service working channel protected by the ODUk SNCP generates the conditions for triggering the protection switching. The service is automatically switched to the protection channel. After the working channel is faulty, the service cannot be automatically restored back to the working channel.

Which of the following are the possible reasons ()? (multiple choice)
Select 4
Options
A Artificially implemented manual switching, lock switching or forced switching commands
B The protection group “recovery mode” is “non-recovery”
C The SNCP type is inconsistent with the business scenario requirements.
D When the working channel is normal, the service needs to be delayed by the “waiting for recovery time” and then switched back to the working channel by the protection channel.
E A small number of errors occur in the working channel
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3
Question
The optical layer path (OCh level) may cause the route calculation to fail. (multiple choice)
Select 3
Options
A The wavelength of the wavelength division side port of the OTU board does not match the wavelength of the light crossing.
B The fiber attenuation between the TDC and RDC ports of the OAU board is too large.
C The fiber connection is incorrect.
D The network layer OTS path is missing.
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4
Question
In order to locate the wave-side optical fiber line and the connector is normal, which of the following loopback methods is most suitable?
Options
A Customer side internal loopback
B Wavelength side inner loopback
C Customer side external loopback
D Wavelength side outer loopback
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5
Question
The OptiX OSN 8800 T64 is configured with four PIU boards and uses 1+1 hot backup to power the system.
Options
A False
B True
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