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And there again, and though, what are going to see the use of applications and services here we have

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the lines of service.

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Server model is one, the client is directly connected with the server.

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And basically, we are going to ask this question What is it, sir?

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Well, typically it is a computer.

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Even in the interface is like a computer that contains information to share with the client system,

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for example, what pages, documents, database images, videos, files and audio files.

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It can be all stored on a server and transmitted to customers in other places, for example, a network

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printer.

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The the prison service for the client, Brent requested to the specified printer in a client service

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network, the nurse and the servers servers run a service or a process sometimes called a service human

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demon or demons are listening, listening to requests.

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From the customer, when demand here, here's a request from a client, it exceeds the appropriate,

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appropriate messages with the requesting client.

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As you can see, by the way, in the very detailed information about network and is I'm going to put

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in every single chapter a billion word.

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Then we have the services and protocols.

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A single application can really add on can rely on many applications and services.

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In addition, service servers typically have multiple clients requesting information or information

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at the same time.

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So.

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What we use a peer to peer model in peer to peer networking.

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Peer to peer, at least two computers are connected via a network and can share resources without having

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dedicated server.

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I'm gonna give you an example.

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We have an example here.

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We have ten computers.

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They are connected with the switch and the one computer is connected with the eight device, which is

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a printer.

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This is a logo of a printer in Cisco Packet Tracer.

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How can Canada going, by the way, here we have a computer, and at the same time, it is a server

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of the printing.

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Here we have the this client computer is sending the message to the server of that printing, and it

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will print the the the following a request from the client.

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And also we year.

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As you can see, it's connected final device named to Pier one to.

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Can operate as a server or as a client, as I said.

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What do we have here?

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The server of Brent and the other clients?

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Then we have the DNA service and protocol.

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What is Dennis?

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What does it mean?

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It is very interesting.

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It is very interesting.

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Server and protocol.

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It is for resolution name resolution.

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You will say, what is the resolution?

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I will give you more detailed explanation that we have here.

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So basically, we have this.

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This photo right here and we have here a cloud that means network we have here, Cisco, that gum server,

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the server client and where this when we as a human we remember means more than remember numbers, right?

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Basically, I'm gonna give you you as an example.

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You remember the first and last name of your friend.

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Of your dearest friend, maybe I can see your best friend or a contract worker, a co-worker, I don't

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know.

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But can you remember their phone number, their cell phone number?

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No, you can't.

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It's very hard to hear every person on the phone with.

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Computers are the opposite.

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You can no names, they only know numbers because it's no.

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Here are translated to white the zeros and ones.

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Got me, so since computers don't understand means, what are we going to offer them numbers?

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And now this is the part of the service, the D.A., the D.A..

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It will translate or transform the.

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The name that you give to the member that is convenient with it.

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So if I wrote Google.com, for example, if I wrote Google Dot Com.

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In that in that moment, did you see it took maybe quite long?

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It gave us a request to the DNS server so it can transfer it to their IP address so it can give me the

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page that I want because basically, if I wrote it that his IP address, its IP address, maybe it will

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be sooner.

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And I don't know.

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I don't remember the IP address of Google.

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Maybe it is eight eight eight eight eight.

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I don't really remember the IP address off of Google, I don't know, IP address.

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I am here giving you examples.

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U.S. law.

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Yes, they're there.

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Oh, we have it here.

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Google maintains the IP address eight, eight, eight and eight four four as the primary and secondary

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DNS addresses.

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We have it also here.

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So it isn't that great that they are going to give it aid that aid that for that for.

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Yep.

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No, no.

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It should give me.

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I don't know why it doesn't for me, because I'm not on.

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I don't know why it doesn't work, basically, if I gave it a IP address to give me the answer of the

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IP address.

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By the way, if everyone put this IP address in their computer, it will give them the interface of

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their telecommunication provider, which is 198, 168 164 164.

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And.

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192.168.1.1, it will give us the the interface of the telecommunication provider that we use, right?

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And by the way.

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Always, always, we have the first.

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A host of the the router IP address, and we always use I don't know.

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I'm not using Google Chrome.

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I'm going to use Google Chrome here, so it can be more reliable.

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So I said always, always in network, and we use one for, uh, for the Iran to address and reuse 250

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for for the.

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Server address.

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It is full of security and stuff like that.

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All right.

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Now let us see you in the next part.