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Huawei H12-931-ENU Exam Syllabus Topics:

Huawei Certified Internetwork Expert-Transmission Sample Questions:

1. Generally, which of the following is not included in the performance evaluation of a WDM network

A) Monitoring signal optical power
B) Single wave optical power & flatness
C) Dispersion & FEC BER
D) OSNR
E) Combined optical power

2. Which of the following statements about OTN reuse and overhead is wrong? ()

A) ODUk combines OTU overhead and FEC overhead and maps to a standardized optical channel transmission unit to form OTUk
B) The overhead of the OTN electrical layer unit is the associated overhead, which is transmitted together with the payload
C) OTN optical layer overhead is non-path-associated overhead, and an independent optical supervisory channel OSC is responsible for transmission.
D) Client signals (such as IP/MPLS, Ethernet, SDH signals) are mapped to ODUk as ODU payload plus ODU overhead

3. For WDM network, the following description is correct (multiple choice)

A) For the OAU board, the type of DGI module connected on site can be roughly judged based on the difference between the output of POUT and the input of BAIN
B) For an OAU board, you can roughly judge the type of DCM module connected to the site according to the upper threshold of nominal gain (dB) on the network management system and the upper threshold of actual gain (dB)
C) For 10G and 100G mixed transmission networks, you can use the performance of 10G to analyze the dispersion compensation of the system
D) For 10G and 100G mixed transmission networks, you can use the performance of 100G to analyze the dispersion compensation of the system

4. For WDM networks, the following descriptions are correct

A) For OAU boards, the type of DCM module connected on site can be roughly judged based on the difference between the output of POUT and the input of BAIN
B) For OAU boards, you can roughly judge the type of DCM module connected to the site according to the upper threshold of nominal gain (dB) on the network management system-the upper threshold of actual gain (dB)
C) For 10G and 100G mixed transmission networks, you can judge whether the dispersion compensation is consistent with the design according to the performance of 10G
D) For 10G and 100G mixed transmission networks, you can judge whether the dispersion compensation is consistent with the design according to the performance of 100G

5. For 10G and coherent 100G mixed transmission systems, the following description is correct

A) The OSNR threshold of the 100G single board is basically the same as that of 10G, so the configuration of the amplifier board can be configured according to the 10G standard.
B) For 100G single wave, since the dispersion tolerance is very large, the dispersion compensation can be compensated according to the compensation principle of 10G
C) It is recommended to use long wavelength for 10G channel and short wavelength for 100G channel
D) Commissioning requires commissioning in accordance with 100G commissioning requirements, that is, non-standard incoming fiber optical power commissioning method

Solutions: