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.