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

1. Using the spectrum analyzer to test the spectrum of the "MON" output signal of the board, which of the following indicators can be measured. (multiple choice)

A) Insertion loss
B) Signal to noise ratio
C) Center wavelength
D) Optical power

2. What are the instruments that need to be used in commissioning? (multiple choice)

A) SDH Analyzer
B) GPS
C) Optical power meter
D) Multimeter
E) Spectrum Analyzer

3. Which of the following are part of the WDM system commissioning work? (multiple choice)

A) Commissioning protection
B) Test error
C) Commissioning feature
D) Cabinet installation
E) Optical power commissioning

4. Which of the following statements about EDFA is wrong.

A) Noise figure, saturated output power, gain flatness, gain, etc. are all important parameters for characterizing EDFA
B) When the EDFA output power reaches saturation, increase the input optical power and the gain of the EDFA will decrease.
C) 1510nm optical monitoring channel can be effectively amplified by EDFA
D) EDFA's amplification of optical signals is pure optical amplification, no photoelectric conversion is required.

5. The extensive use of EDFAs in wavelength division systems is the most important cause of signal-to-noise ratio degradation.

A) False
B) True

Solutions: