All right, let's talk about some network devices, first one we are going to see you have.
So this connects computers and allows these computers for data transfer and for communication.
And already there is one property for the hub.
That is, if this computer wants to send one to send data to this computer, then it will transfer the
data to this hub.
And what this does is it will broadcast that message to every other computers.
So it will send them that same, which is the message sent by this computer to this computer, to this
computer and to this and to this, because it's the hub's property that that is the Hoppes job.
And how we transfer since we can take these computers through a capabilities, but I like you can just
support help contain some pots and you need to plug in the Ethernet cable to these ports.
And if this computer one sends data to this computer, the hub transmits that message to every other
computer, which is connected to the to the port.
So this is very security issue, right.
The because the message is being transmitted by password to every other computer to do so.
So in general, organizations, these hubs are very rarely used and it's better not to use at all because
if any other hacker with a laptop can connect the cable to the spot and can eavesdrop on the messages
going on to this, going over these computers.
So the improvement to the happy switch, it also allows the data transfer between our computers, but
it is somewhat covert.
And so we have learned about this computer and this computer have its own marketers and say these are
devices, content, they're all Mercado's.
Then if this computer wants to send a message to this computer first, it sends data to the switch.
And this data contains the Mercado's.
How this computer, then the switch does not know where to send.
And this computer also don't know where to send this just since to this switch.
And what switch does is at first time the switch transfers, transmits the message to all other devices
and after transmitting to all of the devices, these devices respond to the switch, saying that this
is not my Mac address and this my Macintosh is this one after sending.
After getting response from all the devices, the switched notes, each and every device Mac address,
and it was to be comfortable.
I will be looking at this in the iReport video.
So this which eventually learns Mac addresses of all devices connect to to the port.
And then after getting all the Mac addresses from all the devices, then it will check the data for
the Destination Mac address.
And since this computer wants to send data to this computer and just it should send this data to this
computer because their destination is this one right for you to access your help.
And later on it learns the ah, the Mac addresses of the devices connect to it.
So by this way, which is somewhat clever, then how?
And the next one we need to see is Rotar, Rueter or Rotaru can as you wish.
So what the what does this rotaries Rotar.
And it was the wireless network.
We are using the Wi-Fi in the phones.
And one of the properties simulating that wireless network.
And the most important job of a router is it connects different networks, so whenever we are sending
a data to any other outside of our home network, then these router implement some routing items to
find the best efficient path to reach the destination.
So here is my daughter and my modem connected to the Internet.
So this is another network.
And if I want to send this data to another network, these rotors are compulsory and we have seen the
switches.
This we just were calling it Mercado's.
And we cannot send the data only based on the backorders because there are so many factors out there.
That's why this router improvements since that data to other devices based on IP addresses.
And this Koetter also contains some BHB service, and it will assign the IP address to a particular
device.
So only two important things you need to know for first router include some wireless network and also
it performs the routing algorithms and find the best and efficient, but further from further source
to destination.
And the next one is going to be the bridge, so bridge just connects two separate networks.
So as you can see, there is a horse to be and have one and how to.
And this bridge connects these two networks.
So these bridges are used when there is some say Anakonda first building or an office.
And if you want to connect to like seven different network to the network or to the telephone network,
then you can just cannot simply run the cables over the roads.
Right then in that case, bridges are very useful.
So if you want to connect, if a member of 74 want to contact with the tenth floor, then you can just
send a message through this bridge.
These bridges are very helpful in connecting some different networks where the street and the last one
were going to see is the repeater.
So the reporter's job is to strengthen the signal.
So I had the Wi-Fi and the way rain you saw was a few meters.
And after that, fumigators, my signal gets lost or it weakens.
Right.
Then if I use distributer, this repeater strengthens that signal.
And with this repeater, I can get away for some more distance.
So this is use it when you want to access the network at speed and also at a long distance.