How do protocols such as ATM and Frame-Relay support differentiating multiple customers
or traffic types on the same physical wire?

A.
ATM and Frame-Relay are circuit switched protocols and use Virtual Circuits to create
logical separation of traffic.

B.
ATM and Frame-Relay are point-to-point protocols and do not support different
customers or traffic type on the same physical wire.

C.
ATM and Frame-Relay are circuit switched protocols and use VLAN’s to create logical
separation of traffic.

D.
ATM and Frame-Relay are circuit switched protocols and use IP Header information to
create logical separation of traffic.