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Huawei H12-931-ENU Exam Syllabus Topics:

Huawei Certified Internetwork Expert-Transmission Sample Questions:

1. An operator needs to configure 60 clients, 200 OptiX PTN 1900, 100 OptiX OSN 3800 (With ASON), 150 NE40E, 200 CX600 series equipment, and the access side is equipped with FTTx OLT and MDU, a total of 80,000 xDSL lines , 70,000 lines of PSTN ports, 30 OLTs and 300 MDU devices are deployed.
Regarding the description of this network, the error is:

A) The network is a medium-scale network
B) The number of physical network elements to be managed by the network management center is 980
C) In practice, 50% of the current network size needs to be reserved for expansion capacity
D) The number of equivalent network elements for 100 OptiX OSN 3800 (With ASON) is 350

2. It is found that the U2000 dual machine of the customer network is in the dual master state. In the measures and descriptions of the problem, the correct one is () (multiple choice)

A) If it is a DCN problem, you can use the command #vradmin -g datadg repstatus datarvg at the main site to check the status of the high-availability system after the repair
B) Run the command #vradmin -g datadg repstatus datarvg, and find that the data status is "consistent, up-to-date", which means that the primary and secondary data are not synchronized and need to be updated
C) Check whether the heartbeat line between the main and standby machines is working properly
D) You can first check whether there is any abnormality in the operating status of the main and standby machines

3. Which of the following is the error about the optical power commissioning?

A) Adjust the OAU gain of the optical amplifier board to make the output optical power reach the standard.
B) The actual gain upper threshold of an OAU is smaller than the nominal gain upper threshold, indicating that the performance of the OAU board is degraded and it is recommended to replace it.
C) Adjust the VOA (adjustable optical attenuation) in front of the optical amplifier board so that the input optical power of the board = the input single-wave nominal optical power + 10lgN, where N is the actual wave number. If it is not adjusted to the nominal value, adjust the VOA attenuation to the minimum.
D) For 10G and 2.5G systems, adjust the received optical power of the wavelength conversion board to "high 3 low 5", which is 3dB higher than the receiving sensitivity and 5dB lower than the overload point.

4. NE1 is connected to NE2. NE1 uses OptiX SDH equipment to use time slot of VC4:1:2. If the service can be activated normally, what is the VC12 time slot number required to use equipment from other manufacturers on the opposite end?

A) 2-1-1
B) 1-2-1
C) 1-1-2
D) 2-2-1

5. Which of the following operations may be caused by non-linear effects

A) Replace the originating optical amplifier board with a Raman board, reducing the bit error of the OTU board
B) Reduce the output optical power of the transmitter, reduce the error of the OTU board
C) Adjust the gain of the receiving optical amplifier board, reduce the error of the OTU board
D) Increase the transmitter optical amplifier gain, reduce the bit error of the OTU board

Solutions: