What is osi model

Question

What is osi model

Accepted Answer

OSI model is a conceptual framework that defines how data is transmitted over a network.

OSI stands for Open Systems Interconnection.
It has 7 layers, each with a specific function.
The layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer communicates with the layer above and below it.
The model helps ensure interoperability between different network devices and software.
Example: When you visit a website, the Application layer sends a request to the Transport layer, which breaks the data into packets and sends them to the Network layer, which adds routing information and sends them to the Data Link layer, which adds physical addressing and sends them to the Physical layer to be transmitted over the network.

Popular interview questions of Network Engineer