For osn3500, which of the following boards provides centralized backup capability for the +3.3V power supply of each board in the sub-shelf?

• A.scc
• B.coA
• C.PU
• D.AUX

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After configuring PDH on a per-net element basis, the full trace cannot be searched. Which of the following is a possible cause? (Multiple choice)

• A.The tributary plate is not selected to be recited correctly.
• B.The board selection is incorrect.
• C.Passthrough is not configured at the intermediate site. Correct answer)
• D.The time period is not configured correctly 5.

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Which of the following methods can be used to multiplex low-order ODUK to higher-order ODUk?

• A.Wavelength division multiplexing
• B.Time-division multiplexing
• C.Null division multiplexing
• D.Frequency division multiplexing

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Which of the following communication protocols are used for DCN management of Huawei devices? (Multiple choice).

• A.FTP
• B.TCP/IP
• C.OSl
• D.HWECC

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Which of the following ITLI-T recommendations define the OTN frame structure?

• A.G.975
• B.G.709
• C.G.652
• D.G.694

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