Which of the following paths are not related to the business?

• A.OCh
• B.OSC
• C.Client
• D.ODUk

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

• A.TRUE
• B.FALSE

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The working mode provided by the line fiber quality monitoring function does not include _____.

• A.Manual mode
• B.Intra-office mode
• C.Near-end mode
• D.Automatic mode

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The lower the noise figure of the amplifier, the less noise is introduced by this amplifier.

• A.TRUE
• B.FALSE

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Which of the following statements about replacing the SCC board is incorrect?

• A.If the software version of the new SCC board is earlier than the equipment version, upgrade the software on the SCC board to the same version as the equipment.
• B.After the SCC board is removed, the BD_STATUS and COMMUN_FAIL alarms are reported. After the new board goes online, these alarms need to be manually cleared.
• C.In the case of the 1 + 1 hot backup of the SCC board, replacing the control board does not affect services when the active/standby switchover is performed.
• D.If the software version of the new SCC board is later than equipment version, clear the database of the SCC board, and then downgrade the software on the SCC board to the same version as the equipment.

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