TCP/IPTCP/IPTCP/IP

TCP/IPTCP/IPTCP/IP

TCP/IPTCP/IPTCP/IPTCP/I

TCP/IPTCP/IPTCP/IPTCP/I

TCP/IP TCP/IP TCP/IP TCP

TCP/IP TCP/IP TCP/IP TCP

TCP/IP TCP/IP TCP/IP TCP

4

4

3

2

1

APPLICATION LAYER

APPLICATION AND PROCESS

THAT USE THE NETWORK

HOST-TO-HOST TRANSPORT LAYER.

PROVIDES END-TO-END DATA

DELIVERY SERVICE

INTERNET LAYER

DEFINES THE DATAGRAM AND

HANDLES THE ROUTING OF

NETWORK ACCESS LAYER

CONSIST OF ROUTING FOR

ACCESSING PHYSICAL NET-

WORK.

Pictorial representation of the Layers in the TCP/IP protocol

hierarchy

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