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Huawei Certified Network Professional-Building Carrier OTN Transmission Network Sample Questions:

1. The TMX board is a type of tributary board that supports 10G rate signal access on the customer side.

A) False
B) True

2. The following describes the source function of the electrical layer overhead processing unit, which is correct.

A) The ODUk layer is responsible for the calculation and writing of TTI, BDI, STAT and BIP-8 of the ODUkP layer PM.
B) If TCM (ODUkT) is enabled in the ODUk layer, the write of the ODUkT overhead is written before the ODUk overhead is written.
C) OTUk layer writes bytes such as SM and GCC1
D) OPUk performs client signal mapping, frequency adjustment and rate adaptation in the receiving direction

3. For a certain optical layer scheduling board (such as WSD9/WSM9/WSMD4), you can set the optical wavelength routing in the board separately.

A) False
B) True

4. What are the possible reasons why optical line protection cannot be automatically recovered? (multiple choice)

A) Artificially performed manual switching, lock switching, or forced switching commands.
B) The protection channel has failed.
C) The working channel has failed.
D) The protection group "recovery mode" is "non-recovery".

5. If the IPA function does not start properly, what are the possible reasons? (multiple choice)

A) The IPA function is not enabled.
B) The IPA protection group is equipped with an auxiliary detection board. When the line is broken, the auxiliary detection board does not report alarms.
C) The IPA protection group is configured with an auxiliary detection board, but the board port selection of the auxiliary detection board is incorrect.
D) The fiber break time does not exceed the IPA's turn-off duration.

Solutions: