7 Layers of an OSI Model

All People Seem To Need Data Processing

Application, Presentation, Session, Transport, Network Link, Data-Link, Physical

The session layer

Creates, maintains and terminates a network session

The Network Link Layer

Defines the network address as well as manages routing and forwarding of data. ICMP and RIP protocols as well as all other protocols work in this layer.

The application layer

Enable communication among programs

The transport layer

Manages the flow of data from one end of the traffic to the other. TCP and UDP are parts of the layer

The Physical Layer

Mechanical and electrical functions pertaining to voltage levels, physical data transfer rates, and connectors . The PC itself, motherboard, Ethernet card, or a modem are examples.

The presentation layer

Presents data to the Application layer and is responsible for data translation and code formatting

The data-link layer

System software and drivers that provide the synchronization of data traveling across the physical layer.