📝 Question
#2537
The photonic layer of the SONET is similar to the __________ of OSI model.
✓
Correct Answer
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.
⌨️ Press
A
B
C
D
to select