Which of the following descriptions about the client-side 1+1 protection features is wrong?

Question

Options

• AOTU client optical layer dual transmission and selective reception
• BProtect the OTU single board and OCh optical fiber by occupying and protecting two wavelengths and
• CThe working and protection wavelengths must be the same
• DLong application time and wide protection range

• A
  17% (3)
• B
  6% (1)
• C
  72% (13)
• D
  6% (1)

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