OSI Layer Course  is also valuable as a single reference view of communication . It furnishes everyone a common ground for education and discussion.

OSI Layer Course :

Open Systems Interconnection is a standard description or “reference model” for how messages should be transmitted between any two points in a telecommunication network.

Indeed , The model is a ‘virtual’ model which helps us describe how computers are.

Moreover , The Model is a conceptual model that characterizes and standardizes .

Although , It is the communication functions of a telecommunication or computing system . Mainly , Which will be without regard to their underlying internal structure and technology.

It have been in great need for everyone who are job seekers . Thus its used to get the updated knowledge.

Upper layers of the OSI model represent software that implements network services like encryption and connection management.

Lower layers of the OSI model implement more primitive, hardware-oriented functions like routing, addressing, and flow control.

The OSI model doesn’t perform any functions in the networking process.Its the most wanted Certification in today’s trends.