As with the STP device, the NG WDM device can practice the network element configuration on the network through pre-configured method.

• A.FALSE
• B.TRUE

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Which of the following is not an advantage of WDM?

• A.Compatible with all optical switching networks in the future
• B.Easy to upgrade and maximize protection of existing investments
• C.Completely replace SDH equipment
• D.Large capacity and transparent data transmission

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In the sub-(wave) characterization test, what kind of standard does the isolation test require?

• A.<25dB
• B.>25dB
• C.>20dB
• D.<20dB

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In the case of the OptiX OSN equipment, when the standby board is normal, which of the following operations does not cause the active/standby switching of the cross-connect board or clock board?

• A.Deliver the active/standby switchover command.
• B.Delete the active cross-connect board or clock board logically.
• C.Open the upper and lower ejector levers of the active board at the same time.
• D.Perform a cold reset on the cross-connect or clock board.

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What common methods for MSTP device fault location can be summarized as?

• A.One loopbacks, two board change, three analysis.
• B.One analysis, two loopbacks, three board change.
• C.One board change, two loopbacks, three analysis.
• D.One analysis, two board change, three loopbacks.

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