SONET’s three layers arE. (Choose three.)

A.
DS1

B.
Frame

C.
Path

D.
Line

E.
Section

Explanation:
SONET Layers
SONET divides the overhead and transport functions into three layers:
•Section
•Line
•Path
These three layers are associated with both the physical equipment that segments the network
and the bytes of information that flows through the network elements.