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What does an OPU tributary slot contain, when multiplexing OTN frames?

A.

An OUT.

B.

An ODU.

C.

An OPU.

D.

An OH byte

Which of the following is NOT a functionality provided by a coherent receiver?

A.

Analog-to-digital conversion (ADC)

B.

Digital signal processing (DSP)

C.

Mixing

D.

Demultiplexing