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Huawei H31-331 Exam Syllabus Topics:

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

1. The ETH1, ETH2, and ETH3 ports of the EFI board are connected to the network port of the network management computer through the network cable to implement the management of the OSN 8800 device by the network management system.

A) True
B) False

2. What are the optical layer paths in the path hierarchy of the WDM network? (multiple choice)

A) OCh
B) OTU
C) OTS
D) OMS

3. Which of the following is the implementation principle of the ALC function, which one is wrong?

A) When the line is degraded, first adjust the nominal gain of the optical amplifier unit, and then adjust the attenuation value of the attenuation adjustment unit (VOA) to ensure the power budget of the entire link.
B) When the line returns to normal, if the nominal gain of the amplifier unit does not match the gain reference value, the amplifier gain is first adjusted back to the reference value, and then the attenuation value of the VOA is adjusted to ensure the power budget of the entire link.
C) The reference node transmits its output optical power value downstream every 10 seconds, and the detection node transmits the offset value of the amplifier gain and attenuation. Each node transmits the output optical power and the accumulated deviation value to subsequent nodes.
D) Compare the deviation between line attenuation and amplifier gain and the way the node gain compensates for offset.

4. When the OCH is created by the path method, you do not need to configure the wavelength of the WDM side port of the source and the OTU board.

A) True
B) False

5. Which of the following considerations is required before and after replacement?

A) Check the board indicator blinking status.
B) Confirm that the cable connection is correct.
C) Check whether the switchover is normal for the function board that has the backup function.
D) Query related alarms and performance events through the NMS.

Solutions: