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

1. The method of increasing the signal-to-noise ratio is to increase the optical power, so the optical power has a high signal-to-noise ratio.

A) False
B) True

2. For the aggregation type OTU board, when the ODUk_PM_AIS alarm is received on the WDM side of the receiving OTU board, the following describes the OTN standard signal processing, which is correct.

A) Return OTUk_BDI alarm to the wavefront side of the upstream station
B) Generate SD events on the WDM side of the B station OTU, trigger channel service switching
C) After the alarm processing on the client side, the ODUk_PM_AIS alarm can be detected in the client device.
D) No processing and reporting on this site

3. Monochromatic light does not produce dispersion.

A) False
B) True

4. Which of the following conditions will cause a single channel to report a BEFFEC_EXC alarm?

A) Amplifier board failure
B) The input optical power of the OTU board is too high or too low.
C) The external environment is abnormal
D) The signal is too much loss in line transmission

5. The overload optical power of the APD type receiving laser is only -9dBm, and it is especially necessary to be cautious to prevent the optical module from being burnt due to excessive power.

A) False
B) True

Solutions: