Which WAN technology defines the transmission speed in terms of the OC (optical carrier) hierarchy?
A) Ethernet
B) SONET
C) Frame Relay
D) Cable
E) T-carrier

Question

Quizplus · Accepted Answer

SONET (Synchronous Optical Network) defines the transmission speed in terms of the OC hierarchy, where each level of OC signifies a specific transmission speed. The OC hierarchy starts from OC-1 (51.84 Mbps) and goes up to OC-768 (40 Gbps). Ethernet, Frame Relay, Cable, and T-carrier do not define the transmission speed in terms of the OC hierarchy.

Which WAN Technology Defines the Transmission Speed in Terms of the OC