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

1. Regarding POWER_FAIL, which of the following statements is wrong?

A) If the alarm is reported on the main control board, the system time will be lost after power failure, and the network data will be lost within 30 minutes.
B) If the alarm is reported on the PIU board, it indicates that the subrack input power supply voltage is abnormal and the power supply power module is faulty.
C) If the alarm is reported on the board that is not the main control board, the main power supply in the board is invalid and the backup power supply is normal. This will cause the active/standby power supply to be switched without affecting services.
D) If the alarm is reported on the board of the non-master board, the main power supply in the board fails and the backup power fails. This will cause service interruption.

2. The inner loop retrace does not change the signal structure, and the signal that accesses the local device is directly looped back to the loopback operation of its corresponding output port before the signal processing.
The inner loopback can be used to test fiber optic lines and connectors.

A) False
B) True

3. The following descriptions of the OSN 6800 devices are correct. (multiple choice)

A) The wavelength selection of the tunable wavelength OTU can be performed on the network management
B) After monitoring the 15-minute and 24-hour performance events, all performance events will be cleared.
C) The NMS can set the ID of each subrack of the OptiX OSN 6800 device.
D) The adjustable attenuation range of each channel of VA4 is 2~20dB

4. When commissioning an OTU board, which of the following is the optimal receiving range of the input optical power?

A) Sensitivity +3~Overload point-5
B) Sensitivity +2~Overload point-3
C) Sensitivity +4~Overload point-3
D) Sensitivity +3~Overload point-4

5. After the NE database is restored, the data of the CF card is sent to the SCC and is sent to other boards.

A) False
B) True

Solutions: