Which of the following descriptions are correct? (Multiple choice)

The correct answer is B. 1:1 linear multiplex segment can be equipped with additional services, and its switching mode is C. Both the two-fiber bidirectional multiplex section protection ring and the four-fiber bidirectional D. The APS protocol of the four-fiber bidirectional multiplex section protection ring is carried by the. See the full explanation below for the reasoning.

SDH Transmission Principles

Question

Options

AThe difference between 1+1 linear MSS and 1:1 linear MSS is whether APS is required.
B1:1 linear multiplex segment can be equipped with additional services, and its switching mode is
CBoth the two-fiber bidirectional multiplex section protection ring and the four-fiber bidirectional
DThe APS protocol of the four-fiber bidirectional multiplex section protection ring is carried by the

How the community answered

(49 responses)

A
20% (10)
B
80% (39)

Topics

#multiplex section protection#APS#linear MSP#ring protection

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