Which layer of the TCP/IP protocol stack corresponds to the ISO/OSI Network layer (layer 3)?

The correct answer is B. Internet layer. The Internet layer in the TCP/IP protocol stack corresponds to the network layer (layer 3) in the OSI/ISO model. The host-to-host layer corresponds to the transport layer (layer 4) in the OSI/ISO model. The Network access layer corresponds to the data link and physical layers…

Submitted by klara.se· Apr 18, 2026Network and Communications Security

Question

Which layer of the TCP/IP protocol stack corresponds to the ISO/OSI Network layer (layer 3)?

Options

AHost-to-host layer
BInternet layer
CNetwork access layer
DSession layer

How the community answered

(53 responses)

A
2% (1)
B
92% (49)
C
4% (2)
D
2% (1)

Explanation

The Internet layer in the TCP/IP protocol stack corresponds to the network layer (layer 3) in the OSI/ISO model. The host-to-host layer corresponds to the transport layer (layer 4) in the OSI/ISO model. The Network access layer corresponds to the data link and physical layers (layers 2 and 1) in the OSI/ISO model. The session layer is not defined in the TCP/IP protocol stack.

Topics

#TCP/IP model#OSI model#Network layers#Protocol stacks

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