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H31-311_V2.5 · Question #561

Which of the following descriptions about 1+1 and 1:1 optical line protection are wrong? (Multiple choice)

The correct answer is C. The protection boards used for 1+1 optical line protection and 1:1 optical line protection are the D. The main difference between 1:1 optical line protection and 1+1 optical line protection is whether. See the full explanation below for the reasoning.

WDM/OTN Principles

Question

Which of the following descriptions about 1+1 and 1:1 optical line protection are wrong? (Multiple choice)

Options

  • AAccording to the different placement of the OLP board in the network, 1+1 optical line protection
  • BThe switching mode of 1:1 optical line protection can only be double-end switching
  • CThe protection boards used for 1+1 optical line protection and 1:1 optical line protection are the
  • DThe main difference between 1:1 optical line protection and 1+1 optical line protection is whether

How the community answered

(20 responses)
  • A
    10% (2)
  • B
    20% (4)
  • C
    70% (14)

Topics

#optical line protection#1+1 protection#1:1 protection#OLP switching

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