What are the differences between OSI and TCP/IP protocol models? Explain clearly.
What will be an ideal response?
These are the differences between OSI and TCP/IP protocol models:
The OSI model consists of 7 layers, whereas the TCP/IP model consists only 5
layers.
In the TCP/IP protocol suite, the application layer serves the purpose of the
three combined layers of application, presentation and session. The OSI model
made a clear distinction between the top three layers. Each application in the
TCP/IP suite has to independently implement the session and presentation
layer functions.
The OSI suite was put forward before the protocols were invented whereas the
model was a description of the existing protocols in in case of TCP/IP,.
The OSI model supports connectionless and connection-oriented
communication in the network layer, and only connection-oriented in the
transport layer. TCP/IP supports only connectionless communication in the
network layer, and provides a choice of both connectionless and connectionoriented communication in the transport layer.
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