Free Access Huawei.H31-341-ENU.v2022-03-27.q123 Practice Test (Page 20)

Question 91

In the WDM system, after a certain distance of transmission, the optical signal-to-noise ratio of the receiving signal will be reduced to a certain extent. What is the main reason?

A.No new fiber is used

B.Fiber attenuation is too large

C.Use of the splitter combiner

D.Use of EDFA

Question 92

A, C are the WDM OTM stations, and B is the relay station. When the transmission direction of the A to B stations is interrupted, the Wavelength side of the B-stack OTU relay board reports the R_LOS emergency alarm and runs the processing to the upstream A.
The station side OTU2_BDI secondary alarm. At the same time, the alarm continues to be transmitted to the downstream station of the B station. After the alarm is processed at the C site, the ODU2_PM_AIS minor alarm is reported on the WDM side of the C-site OTU, and the ODU2_PM_BDI secondary alarm is transmitted back to the upstream station A.

A.FALSE

B.TRUE

Question 93

The causes of discrete services are as follows:

A.The configuration data on the NE side is not uploaded to the U2000.

B.The cross-connection configuration on the NE is incorrect.

C.The logical fiber connection of the NE is inconsistent with the physical fiber connection.

D.A subnet service whose source or sink port is not in the management scope of the U2000 is available.

Question 94

Which of the following reasons may cause a business error? (Multiple choice)

A.The optical power of the incoming fiber is too high or too low

B.Dispersion compensation is unreasonable, such as under- or over-compensation

C.The temperature in the equipment room is too high

D.The tail wire connector is seriously polluted

E.Transmitting laser performance degradation of the originating OTU board

Question 95

Which of the following description of the principle of automatic protection switching of the standard SSM protocol is correct? (Multiple Choice)

A.The network element broadcasts the clock quality information and the clock source ID of the synchronization source to the downlink site through the S1 byte, and reverse notices the uplink site that the clock quality from the local network element is "not available for synchronization" by the S1 byte in the direction of the synchronization source.

B.The network element broadcasts the clock quality information of the synchronization source to the downlink site through the s1 byte. And reverse notice the uplink site by the S1 byte in the direction of the synchronization source that the clock quality from the local network element is "not available for synchronization".

C.If there are multiple clock sources with the highest quality level, the network element selects the clock with the highest clock priority as the synchronization source.

D.According to the clock source priority table, the network element first selects the clock with the highest quality level from the available clock sources as the synchronization source.

Other Version: 3462Huawei.H31-341-ENU.v2022-10-13.q154; 3716Huawei.H31-341-ENU.v2022-05-23.q144

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Question 91

Question 92

Question 93

Question 94

Question 95

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