What are the main problems faced by traditional subway MTSP embedded RPR solutions?

• A.RPR supports a single ring 1.25G bandwidth at most, Large bandwidth requirements are difficult to solve
• B.Does not support cross-board, cross-device warranty Protect
• C.Cannot communicate across rings and the network is affected by limit

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The ODN deployment description is correct

• A.ODN is an optical distribution network, yes Optical cable network based on PON equipment Network
• B.ODN is Optical Distribution Short for Network
• C.ODN is mainly divided into 3 sections of feeder, Wiring, entrance section.
• D.Optical transmission between OLT and ONU Input channel

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Self-built optical transmission network can achieve physical isolation, so it must be more reliable and economical.

• A.FALSE
• B.TRUE

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The selling points of Huawei's power industry transmission and transformation solutions include ()

• A.2M ASON
• B.AES256 encryption
• C.Ultra long distance solution
• D.Built-in PCM/2M optical port

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Which of the following is not the key message of the "IP+Light" fusion solution

• A.Big data analysis
• B.Easy evolution
• C.Smart operation and maintenance
• D.Simple architecture

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