Introduction to switching network

This lesson will give you a simple information that will help you to understand the next lessons.


The communication switching system enables the universal connectivity. The universal connectivity is realized when any entity in one part of the world can communicate with any other entity in another part of the world. In many ways telecommunication will acts as a substitute for the increasingly expensive physical transportation.

Now try to Answer this question to test your knowledge :

What are layers of OSI model?

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