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Huawei Certified Internetwork Expert-Transmission Sample Questions:

1. PID (Photonics Integrated Device) is an optoelectronic integrated device, PID single board can realize multi-wavelength integration, 40Km without optical amplifier, 80Km without dispersion compensation ()

A) FALSE
B) TRUE

2. What kind of alarm will be inserted into the opposite NS3 board when the optical port software is looped back on the NS3?

A) ODU3_PM_AIS
B) ODU3_PM_OCI
C) OTU3_LOF
D) ODU3_PM_SSF

3. After the 10G system wavelength division commissioning is completed, it is found that the OSNR value of the single wave scanned by the receiving MCA is very good, but the bit error rate before error correction is very poor. The possible reasons are (multiple choices)

A) Unreasonable dispersion compensation
B) Unreasonable optical power commissioning
C) An optical equalization station is used in the middle
D) The line attenuation is greater than the design value

4. When shutting down the U2000 dual-computer system (Solaris), the following commands will be used:
① $ ./stopnms.sh
② 1> shutdown SYB_BACKUP 2> go
③ shutdown -y -g0 -i5,
④ # sync; sync; sync; sync
The correct order in which these commands appear is ()

A) ①②④③
B) ②①④③
C) ④②①③
D) ④①②③

5. The insertion loss of the 40 sub-wavelength channels of D40 is 6dB, regardless of the influence of noise, when the signal is full-wave, the IN port optical power of D40 is X dBm. If the optical power of the IN port is reduced by 1dB, The measured value is () dBm. (Assuming that the optical power of each channel is balanced, lg40=1.6)

A) (X-22)
B) (X-6)
C) (X-5)
D) (X-23)

Solutions: