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Computer Networks
Sonet
Q
The photonic layer of the SONET is similar to the __________ of OSI model.
AA. Network layer
BB. Data link layer
CC. Physical layer
DD. Transport layer
Correct Answer:
C. C. Physical layer
Explanation:
The photonic layer in SONET is like the physical layer of the OSI model. It is the lowest layer among the four layers of SONET namely the photonic, the section, the line, and the path layers.
