Original subtitles

What is a Network Protocol?

Well a Network Protocol is essentially a set of rules

and conventions that governs the communications

between Network devices or as an example

between Computers on a Network

In order for 2 Computers to talk to each other

as an example they must be speaking the same language

If I only speak English and you only speak French

we’re not going to communicate effectively

In the same way, when 2 Computers communicate with one another

there needs to be a set of rules governing

how those computers exchange data

and effectively communicate with one another

In our everyday lives we follow guidelines or rules

when we communicate with one another

As an example; when you drive on the road

you follow a set of rules

when the traffic light is green it means GO

when its red it means STOP

Now networking there are many types of Networking Protocols

and standards to ensure that Computers

can effectively communicate with other devices

which maybe right next to them

or on the other side of the world

Later in this course you’ll learn about

the OSI Model or Open Systems Interconnection Reference Model

which defines 7 layers of Networking Protocols

For now simply understand

that a Network Protocol is essentially

a language that governs

the communications between

the Networking Devices