Huawei Certified Network Professional-Building Carrier OTN Transmission Network (H31-331) Free Practice Test

Question 1

What are the correct statements about the system's 24-hour error-free loopback performance test? (multiple choice)

A. The number of channel cascading does not exceed 16, and the channel bearer service type may be different.

B. It is not necessary to add a fixed optical attenuator when the optical port is self-looping.

C. The test time is generally set to 24 hours. The test generally requires the system commissioning to be completed. At this time, the optical power per channel should be the optimal value.

D. The test is also done for each channel, we can use multiple channels in series to test.

Correct Answer: C,D

Question 2

Which of the following does not belong to the network management side network layer data?

A. Path information

B. Protecting subnet information

C. Uploaded configuration data

D. Cable connection information between network elements

Correct Answer: C

Question 3

If the IPA function does not start properly, what are the possible reasons? (multiple choice)

A. The IPA function is not enabled.

B. The fiber break time does not exceed the IPA's turn-off duration.

C. The IPA protection group is equipped with an auxiliary detection board. When the line is broken, the auxiliary detection board does not report alarms.

D. The IPA protection group is configured with an auxiliary detection board, but the board port selection of the auxiliary detection board is incorrect.

Correct Answer: A,C,D

Question 4

For a certain optical layer scheduling board (such as WSD9/WSM9/WSMD4), you can set the optical wavelength routing in the board separately.

A. False

B. True

Correct Answer: B

Question 5

Which of the following boards need to confirm the status of the dial or jumper on the board before performing the replacement operation? (multiple choice)

A. SCC

B. XCS

C. SC1/SC2

D. M40/D40

E. AUX

Correct Answer: A,E

Question 6

Which of the following are part of the WDM system commissioning work? (multiple choice)

A. Optical power commissioning

B. Commissioning feature

C. Test error

D. Cabinet installation

E. Commissioning protection

Correct Answer: A,B,C,E

Question 7

When debugging the WDM system, it is mainly to ensure the flatness of the power at the end and the flatness of the signal-to-noise ratio.

A. False

B. True

Correct Answer: A

Question 8

Regarding the removal of the path operation from the network management, which of the following statements is wrong.

A. After the path is deleted from the network layer and the network element, the service is interrupted.

B. Deleting a path from the network layer deletes only the WDM path of the network layer on the NMS side.

C. The business is not interrupted after the path is deleted from the network layer.

D. Delete the path from the NE layer and delete the NE side with the path of the NE layer.

Correct Answer: A

Question 9

The name of the network layer that exists between the multiplexer and the demultiplexer, which of the following is true.

A. OTS

B. OCh

C. OSC

D. OMS

Correct Answer: D

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Huawei Certified Network Professional-Building Carrier OTN Transmission Network (H31-331) Free Practice Test