INTERVIEW QUESTIONS NETWORKING TCP/IP DETAILS

Question: What are the differences between OSI and TCP/IP model?

Answer: mportant differences are:

OSI is a reference model and TCP/IP is an implementation of OSI model.

OSI has 7 layers whereas TCP/IP has only 4 layers The upper 3 layers of the OSI model is combined on the TCP/IP model.

OSI has: physical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer TCP/IP has : Network layer, Internet layer, transport layer and application layer.

mportant differences are:

OSI is a reference model and TCP/IP is an implementation of OSI model.

OSI has 7 layers whereas TCP/IP has only 4 layers The upper 3 layers of the OSI model is combined on the TCP/IP model.

OSI has: physical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer TCP/IP has : Network layer, Internet layer, transport layer and application layer. Source: CoolInterview.com

tcp/ip is prior than osi.

osi has 7 layer whereas tcp/ip has 5 layer. Source: CoolInterview.com

OSI model came fist and the protocols are defined later based on the model and it is generic model for any network.
The TCP/IP is derived from OSI model.
In TCP/IP model the protocols came first and the TCP/IP model is defined just for decription for that defined protocols Source: CoolInterview.com

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