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Importance of the Layer Model in Computer Networks:

The layer model is extremely important in computer networks because it makes data transmission simple, organized, and more effective. The data communication process in computer networks is quite complex, involving many tasks and technical issues. The layer model divides this process into different layers, with each layer having a specific function. This makes network design, implementation, and troubleshooting easier.

Purpose of the Layer Model:

Modularity, Interoperability, Standardization, and Division of Labor.

Types of Layer Models:

The two main layer models are the OSI (Open Systems Interconnection) model and the TCP/IP model.

1. OSI Model: Developed by ISO, this model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The text provides a brief description and examples for each layer.

2. TCP/IP Model: Based on the Internet Protocol Suite, this model is widely used in today's internet and has 4 layers: Network Interface, Internet, Transport, and Application. The text explains how these layers correspond to the OSI model layers and gives examples.

Importance of the Layer Model in Computer Networks

Importance of the Layer Model in Computer Networks:

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