Which TCP/IP protocol operates at the OSI Network layer?

A.
FTP

B.
IP

C.
UDP

D.
TCP

Explanation:
The correct answer is IP. IP operates at the network layer of the OSI
model and at the Internet layer of the TCP/IP model. FTP operates at
the application layer of the TCP/IP model, which is roughly similar
to the top three layers of the OSI model: the Application, Presentation,
and Session layers. TCP and UDP both operate at the OSI Transport
layer, which is similar to the TCP/IP Host-to-host layer.