At which layers of the OSI model do WANs operate? (Choose two.)
A.
application layer
B.
session layer
C.
transport layer
D.
network layer
E.
datalink layer
F.
physical layer
At which layers of the OSI model do WANs operate?
At which layers of the OSI model do WANs operate? (Choose two.)
WAN operates in the two lowest layers which are Data Link and Physical layers.
layer1-physical layer
layer2-datalink layer