All language subtitles for 3. No Wire - Wireless in cisco CCNA 200 -301

Well, hello, my friend.

So in this lesson, we're going to learn about Wi-Fi technology.

So I want to get started quickly because everybody's got access to Wi-Fi these days, right?

With the development of technology in the internet, the number of options that take up a large area

in daily life, I'd say way increases wireless, which you encounter like everywhere, is one of these

concepts that you come across with technology.

So the internet, which is been a well, the center of life for quite a while now, brings with it many

innovations that are great since the concept of wireless is often referred to as Wi-Fi.

You might have even heard this term that at some point your life.

But I want to break it down for you.

The basic function of wireless ports is through systems that generate radio waves, radio waves or,

you know, ancient, right?

So radio waves, these kind of radio waves are produced according to more than one standard.

And they are detected by various receivers.

And usually they're included in the system.

In fact, many devices that you use in daily life have some sort of wireless connection.

So they're all able to pick up on these types of radio waves.

Right?

Are you with me?

Cool.

Now this is how we can get into your local area network.

It's via these radio waves.

So wireless support might not always be included in the computers that you use in daily life and in

those cases, well, its service can be used just by plugging in a little wireless adapter.

So the parts in the wireless system include ADSL modems and wireless network adapters and access points

and wireless bridges.

Now, it can also be encountered in many areas, especially wireless mobile phones and computers, which

are, of course, at the center of our lives these days.

But generally, wireless connections are divided into when and land.

So this kind of nomenclature w lan, which appears, well, it's just a concept of wireless.

It's actually an abbreviation of the word wireless local area network.

Right?

So by using this system, which enables transactions through radio waves, information is exchanged

over many devices.

In fact, wireless local area networks enable information exchange in wireless environments using radio

waves.

Think about cell phones.

Now, the concept presented in the form of when is known as the abbreviation of the word wide area network.

So this wide area network is a system that is generally used under harsh conditions or in environments

where the cable connection is insufficient.

So you will have a wireless wide area network.

All right.

Now, there are such things as wireless routers and access points, and these have to be installed in

such a way that the coverage and the signal can be easily received.

I don't suppose you would recognize that person kind of tapping on their phone and holding it in a strange

way, he's trying to get a signal, right?

So what we're talking about here is defining the coverage.

Cell.

Right, so this is where more than one access point is required to reach a sufficient coverage area.

So it's also possible to add an access point to your existing wireless router at home, and that'll

improve coverage as well.

So they were kind of the same way wireless networks will communicate with radio signals like we were

talking about.

So just like if you remember back in the day when we all had cordless phones, but televisions communicate

the same way as well, as well as that old trusty radio in your car.

Now, two way radio communication is also used in wireless networks.

The computers wireless adapter converts the data into radio signals and sends it via an antenna.

So a wireless router receives the signal and decodes it.

Then the router sends the information on to the internet with a physical cable connection.

This process also happens in reverse, right, the router receives the necessary information from the

internet and converts it into radio signals.

So these radio signals are then sent to the computers wireless adapter.

All right, so that's kind of the general idea of Wi-Fi technology.

See, I told you one piece of boring.

All right.

I want to see in the next lesson.