When relocating the OLA site (10G system), which of the following descriptions are wrong

• A.The relocation distance has changed, and the system dispersion needs to be re-evaluated
• B.The relocation distance has changed, and the optical power of the line needs to be reassessed
• C.The relocation distance has changed and the system signal-to-noise ratio needs to be reassessed
• D.There is no need to adjust the optical power of upstream and downstream sites in the network management during the relocation process

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N3EGS2 supports which of the following protections?

• A.DLAG
• B.PPS
• C.TPS
• D.BPS

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Which of the following statements about OTN overhead is correct? () (multiple choice)

• A.BIP-8 error codes in SM, PM, TCM monitor errors in different levels and areas in OTN
• B.In the OTN frame structure, only SM overhead has IAE and BIAE functions
• C.Both TCM and PM have ODUK-LCK, ODUK-OCI, ODUK-AIS three maintenance information
• D.5 consecutive frames in the SM/TCMi/PM overhead field (the 5th bit of the 3rd byte) The bit value of BDI is "1", which will generate BDI

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In the network management planning, which of the following descriptions is correct (multiple choice)

• A.Among other requirements, if the client is running on the server side at the same time, the management ability will be reduced by 60%, so it is recommended that the client and server be run separately.
• B.In the deployment planning of the network management subsystem, it is necessary to determine the network element manager subsystem to be installed according to the network element series. For example, if you need to use the Corba northbound interface, you need to install the Corba northbound subsystem.
• C.Centralized deployment scheme is recommended for network management deployment planning. Only consider the use of a distributed deployment solution when the customer strongly requires it.
• D.Equivalence factor = resources occupied by physical network elements or ports / system resources occupied by equivalent network elements; virtual network elements do not calculate management capabilities; pre-configured network elements are equivalent to virtual network elements.

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What is wrong with the workflow of U2000 CORBA and OSS interconnection?

• A.OSS connects to the name service through the CORBA client. The CORBA client of OSS finds the event channel through the name service
• B.CORBA registers CORBA in the notification service to create a channel to the name service
• C.start name service start notification service start U2000 CORBA
• D.OSS accesses CORBA agent through CORBA client CORBA agent reports messages to OSS through event channel

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