You need to perform () operation before querying the error code and optical power on the network management system, otherwise the corresponding teaching data cannot be queried.

You need to perform () operation before querying the error code and optical power on the network management system, otherwise the corresponding teaching data cannot be queried.A . Create logical fiberB . Configuration dataC . Synchronize network element dataD . Enable network element performance monitoring timeView AnswerAnswer: D

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The optical and electronic racks of the OSN 9800 equipment communicate through the master-slave sub-rack cascade connection, and are connected through the GE1/2 port on the CTu board.

The optical and electronic racks of the OSN 9800 equipment communicate through the master-slave sub-rack cascade connection, and are connected through the GE1/2 port on the CTu board.A . TRUEB . FALSEView AnswerAnswer: A

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The compensation of the chromatic dispersion of the WDM system mainly adopts the DCM compensation method. The following statement about DCM dispersion compensation, which is wrong?

The compensation of the chromatic dispersion of the WDM system mainly adopts the DCM compensation method. The following statement about DCM dispersion compensation, which is wrong?A . Improper DCM configuration will lead to degradation of system signal-to-noise ratio.B . For 10G systems with line fiber length within 400km,C . 652...

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VPLS (Virtual Private LAN Service) is a two-layer VPN technology that simulates a local area network.

VPLS (Virtual Private LAN Service) is a two-layer VPN technology that simulates a local area network.A . TRUEB . FALSEView AnswerAnswer: A

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The following description of Flexible ROADM, which is wrong?

The following description of Flexible ROADM, which is wrong?A . Improve spectrum utilization to meet the flexible scheduling requirements of the future era of over 100Gbit/= rate.B . DFlexible ROADM is compatible with existing networksC . WSMD2 board supports F1exible ROADM configurationD . Flexible grid technology can flexibly set the...

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Which of the following unified line boards can support the crossover of VC, packet and ODUk at the same time?

Which of the following unified line boards can support the crossover of VC, packet and ODUk at the same time?A . U210B . HUNQ2C . UNQ2D . HSNS4View AnswerAnswer: D

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Regarding the description of replacing the main control board, which is wrong?

Regarding the description of replacing the main control board, which is wrong?A . The BD_STATUS and COMMUN_FAIL alarms will be reported when the main control board is removed and inserted. After the new board goes online, these alarms need to be cleared manually.B . If the software version carried on...

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The following description about 1+1 optical line protection, which is wrong?

The following description about 1+1 optical line protection, which is wrong?A . The default switching mode is non-recoveryB . The default switching mode is double-ended switchingC . The initial difference between the main and standby input light defaults to 0D . The main and standby input optical difference gate defaults...

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The following description about single-site commissioning, which is wrong?

The following description about single-site commissioning, which is wrong?A . If the input voltage of the device is not within the required range, rectification suggestions should be made and power-on is strictly prohibitedB . It is strictly forbidden to plug and unplug the power plug and PIU board when power...

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The following description of the NG WDM equipment connected to the network management computer, which is wrong?

The following description of the NG WDM equipment connected to the network management computer, which is wrong?A . Connect to the network management computer can be connected directly or through a local area network, depending on the situationB . If the subrack connection mode is master-slave mode, the network management...

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