Free Access Huawei.H31-341.v2022-08-22.q153 Practice Test (Page 18)

Question 81

Which of the following alarms will trigger the optical line protection switching? (Multiple choice)

A.POWER DIFF_OVER

B.R_LOS

C.MUT_LOS

D.R_LOF

Question 82

Which of the following description of the single station commissioning is wrong?

A.If the input voltage of the equipment is not within the required range, suggestions for rectification should be proposed.

B.Single station hardware check is complete, make sure all power switches are in the off position

C.In case of power failure, the contact board can be used without anti-static wrist or anti-static gloves.

D.It is strictly forbidden to plug and unplug the power plug and PIU board.

Question 83

The wave division system complement to chromatic dispersion mainly adopts the DCM compensation method. The following statements about DCM dispersion compensation, which is wrong?

A.Improper configuration of the DCM will result in degradation of the receiving end performance.

B.Improper configuration of the DCM will result in degradation of the system signal-to-noise ratio.

C.10G system with line fiber length less than 400km, G.652 DCI can be used to compensate G.655LEAF).

D.The DCM module is more likely to cause nonlinearity than the line transmission fiber, so it is necessary to strictly control its fiber-optic power.

Question 84

Which of the following protection schemes require the APS protocol?

A.1:1 optical line protection

B.SW SNCP

C.ODUk SNCP

D.ODUk SPRing protection

Question 85

When different routes are used for client-side 1 + 1 protection, the working wavelength and protection wavelength cannot use the same wavelength.

A.False

B.True

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Question 81

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Question 85

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