WEBVTT - This file was automatically generated by VIMEO

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Hello, everyone. I hope you all are fine and welcome

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 to the video number 1.4 in this video. We're going

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 to talk about communication Protocols, of course

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 application layer. So let's get started with that.

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As we see in the previous video. We have a lot of communication Technologies

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 same we also have a lot of

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Different communication protocols. So on the

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 number one. We have a HTTP and https. It's

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 actually the first communication protocol

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 that was developed when the internet.

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Launched for the web browsing and we are

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 still using that protocol in variety of

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 scenarios and also in iot.

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And the second is mqtt and the mqtt s

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 means secure and the next is xmpp. Json

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 cope amqp and the

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 website.

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So let's get started with the specific protocols

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 that are specially designed for

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 the iot and these are the mqtt and

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 mqtts secure and

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 the next one is a cope and am QP.

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 And the last one

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 is the lower when actually you are getting confused with

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 the Laura and the Laura van. Actually Laura is

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 a

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physical communication technology or

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 you can say that

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Laura works on the physical layer and the lower

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 Van Works on the application layer. So that's

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 why this protocol is there in the

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 iot specific protocols. So these

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 are the communication protocols same in the previous video.

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 We talk about why we need a iot specific communication

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 Technologies and why we need iot specific

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 protocols because here we have

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 a machine to machine communication not machine

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 to human interaction. So that's why

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 we don't need a lot of stuff which will

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 cut down the burden of a traffic specifically we

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 talk about if we compare mqtt or HTTP,

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 then mqtt is a more lightweight protocol

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 as compared to http because air machine

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 to machine our communication with each other

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 and in HTTP is designed for the

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 browsing which is used by browsers to

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 surf the data by the peoples are

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 not the machines. So that's

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I actually machined.

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Machine didn't have eyes. So that's why

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 we didn't need a lot of huge data. Just

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 like machine cannot see the images Machine just understand the

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 binary content or other content formats. So

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 that's why I'm qtt is a very lightweight protocol and

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 used for the instant communication same like

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 cope. We will discuss in

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 detail in the next sections because

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 we have a two dedicated sections one for

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 mqtt. And other one is for cool.

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So guys, this is the last video of that section

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 and see you in the next section where we

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 are going to talk about the RFID and the NFC till

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 now have a good day. See you in

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 the next section. Bye.