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Under the ADM configuration in the STM-16 level two-fiber bidirectional multiplex section shared protection ring, which of the following is the service protection situation?
Under the ADM configuration in the STM-16 level two-fiber bidirectional multiplex section shared protection ring, which of the following is the service protection situation?A . The two circuit boards back up each otherB . Half the capacity in one board is used to protect half the capacity in the other...
Which of the following descriptions of railway business network security and reliability requirements are incorrect ?
Which of the following descriptions of railway business network security and reliability requirements are incorrect ?A . TDM services and Ethernet services are physically isolated using different hard pipesB . Different Ethernet subsystems use ODUk physical pipes to isolate servicesC . E1 services are on the TDM plane, and IP...
The line impedance of the 2Mbps electrical interface is specified as
The line impedance of the 2Mbps electrical interface is specified asA . 75Ω (unbalanced)B . 120Ω (balanced)C . 75Ω (unbalanced) or 120Ω (balanced)D . None of the aboveView AnswerAnswer: C
The power OTN backbone communication network is mainly used to carry () services.
The power OTN backbone communication network is mainly used to carry () services.A . Scheduling AutomationB . Dispatch PhoneC . Data communication networkD . SCADAView AnswerAnswer: C
In the WDM model, the payload part of the OMS layer of the functional unit that completes the OEO conversion is processed on the MUX/DEMUX/OADM board OTU optical wavelength conversion board
In the WDM model, the payload part of the OMS layer of the functional unit that completes the OEO conversion is processed on the MUX/DEMUX/OADM board OTU optical wavelength conversion boardA . OLAB . MUXC . DEMUXD . OTUView AnswerAnswer: D
Which service accounts for the largest proportion of traffic in the radio and television bearer network?
Which service accounts for the largest proportion of traffic in the radio and television bearer network?A . VideoB . BroadbandC . Attract customersD . WirelessView AnswerAnswer: A
What is the main application scenarios of DC908?
What is the main application scenarios of DC908?A . Complex Metropolitan NetworkB . Backbone networkC . DC point-to-point interconnectionView AnswerAnswer: C
What is the device with small size, high integration and unified platform in Huawei's financial data center transmission solution?
What is the device with small size, high integration and unified platform in Huawei's financial data center transmission solution?A . OSN9800UPSB . OSN1500C . OSN1800VD . OSN810View AnswerAnswer: D
Among the following ONUs, the model that does not support the POE function is:
Among the following ONUs, the model that does not support the POE function is:A . P613EB . P612EC . P602ED . EG8084PView AnswerAnswer: C
What is the biggest difference between radio and television and operators before 2019?
What is the biggest difference between radio and television and operators before 2019?A . Wireless ServicesB . Private Line ServicesC . Home Broadband ServicesD . Video servicesView AnswerAnswer: A
