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

1. Which of the following combinations of dynamic optical add/drop multiplex boards is not true?

A) RDU9+RMU9
B) WSD9+WSM9
C) RDU9+WSM9
D) WSD9+RMU9

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

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

3. Standard FEC, AFEC, and HFEC techniques all increase FEC overhead, and the resulting coding gain is incrementally increased.

A) True
B) False

4. OTU is one of the important components of the WDM system. Which of the following is wrong about OTU?

A) The greater the dispersion tolerance of the transmitter, the farther the signal can transmit without dispersion compensation.
B) -20dB spectral width, side mode suppression ratio, center wavelength, frequency offset, etc. are all important parameters or indicators to measure the OTU wave side transmitter.
C) The most basic function of the originating OTU is to perform wavelength conversion to convert the wavelength of the signal that is not suitable for WDM system transmission to the wavelength that meets the transmission requirements of the WDM system.
D) Sensitivity and overload point are important parameters/indicators for measuring the OTU receiver. The sensitivity of the PIN receiver is better than that of the APD.

5. What are the maintenance signals included in ODUkP and ODUkT? (multiple choice)

A) AlS
B) OCI
C) IAE
D) LCK

Solutions: