Which of the following ITLI-T recommendations define the OTN frame structure?
Answer(s): D
The dual fiber ring topology consisting of three network elements is arranged in counterclockwise order as the service between A, B and C A and C occupies the first VC-48 on the short path VC-12 time slots, B and C of the same service also occupy the 48th of the first VC-4 on the short path VC-12 time slots
Answer(s): C
Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?
Answer(s): A
K1 and K2 bytes can send APS switching signaling or indicate that the multiplexed segment signal is invalid.
Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?
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