Question

Why do we need a TCP/IP-OSI hybrid (5) model, when we already have the TCP/IP model?

Answer 1

OSI model drawbacks :

-Many applications do not require/need the data integrity, which is provided by OSI-model.

-In order to fast set up OSI requires agreement b/w three-parties: users & service provider.

-Complex.

-This model is not adapted at all to telecommunication applications on computer.

Why TCP/IP model:

• It can be used to establish/set up connection b/w different types of computers.
• It operates/works independently of the operating system.
• It support for a number of routing-protocols.
• It enables the internetworking between the organizations.
• It has a scalable, client-server architecture.

osi model are 7 type different layers to developing the communication. it will taken much time to produce the data into source to destination, and identify the destination is also take much time. because of this are wired based system.

once the application layer completed means automatically the second stage presentation layer can work that continues into total 7 layer each and every layer can be must and should verified to delivered the destination.

connection are wire based it will take risk.

but tcp can be implemented into direct connection of host to internet to the destination. the tcp are contains only 4 layers only .

it will work wireless connection also easy way to connecting to the source to destination using ip address of destination device.