Answer: The OSI model is defined as a framework that helps to understand the network architecture and communication protocols. It provides with the systematic approach for transmission and communication of between the devices connected in the network.
Below are the Real life examples:
Example 1: Ethernet and Local Area Networks
Ethernet is defined as an important element of OSI model that works as a vital backbone of LAN connections. It provides the way to connect networking devices into a single digital system for transmission of data. In the OSI model at physical layer, transmission of signals is done by ethernet cables and reliability of transmission is provided by Data Link Layer.
Example 2: IP Addressing and the Internet
IP addressing works at the network layer of OSI model and transmit the data over internet. A unique identity is being assigned to every device involved in the communication that helps to transmit the data from sender to receiver. The way of communication is being revolutionized through IP addressing and the working of network layer.
Example 3: Email Communication and SMTP
Email communication works on the SMTP protocol. It is a standard protocol for sending and receiving of mail that operates at the Application Layer of OSI model. It provides with efficient transmission of data of email communication. Thus Application Layer provides with efficient interface and services that helps to interact with sender and receivers via SMTP protocol.