Hello, everyone.
So in this video we are going to learn about Network types.
So what is the network?
How do they help us?
What are the network types?
And what are the difference in Networks?
Okay. So first of all, what is a network?
A network is a connection of two or more computer systems.
Servers or mainframes as you
can see into the diagram.
There are many different different devices which are connected
to a router in the center, which is
further connected to a ISP, which is
an internet service provider which gives internet.
so
the network
the what is the purpose of a network?
to share files
to do electronic communication
end to exchange resources
Networks can be linked through telephone lines radio waves
satellites and infrared light
beams.
So the first network type that is LAN.
Lan stands for local area network
It is a collection of computers connected with
each other in small place such as
school Hospital apartment or any organization.
You must have seen these type of network into your school
or college or company.
Lan is considered secure because there is
no outside connection with the local area network.
Thus the data which is shared is safe on
the land Network and is not accessible
by the outside world.
Lan can be wired connection using cables or it can be Wireless
or both.
Due to the small size Lan is considered to be
faster into the same network.
So let's quickly discuss about man.
man stands for metropolitan area
network
Man is a collection of Lan through
telephone lines.
So man is considered a bigger Network than Lan
as you can see into the figure at the bottom.
Man covers the larger area like city or
town.
So what is when?
when stands for wide area network
which provides long distance transmission of data?
The size of fan is larger than land and man.
One can cover country continent or even
the whole world.
Itally connects the whole world with the internet.
The example is internet.
The next network type is span.
pan stands for
personal area network
So this type of network is made to interconnect devices
and make a very small
personal area network.
for a small and a specific range
a pan provides data transmission among devices such
as computers phones tablets or
personal digital assistants.
The best example of a pan network
is Bluetooth Wi-Fi hotspot or a
zigbee network?
Remember all these types of networks are limited
to a specific range. That's why these
are called as personal area network.
Next is can.
Can stands for campus area network?
It is a computer network for interconnecting electronic
devices which are connected inside a
campus type of infrastructure.
This can be seen in colleges universities
or in a campus.
The next is San which stands
for storage area network?
This type of computer network is used for
interconnecting of electronic devices, which are
used for a storage type within a centralized
Network.
For instance. Let's say there is a company X and
they need to store all the
important and send.
And sensitive files into a centralized location,
which should be accessible by
each of their employees.
So in this case, they will use and
sand type of network, which is a storage
area network.
Which gives Secure Storage for the intranet Network?
The next is VPN.
VPN stands for virtual private Network
This is a computer network for creating encrypted tunnels
for communication, which is basically a
private Network.
The example of VPN is to connect to a secure
network area. For example, if you want to connect to
some of the NASA's computer, you cannot
directly communicate to their internal Network. You
may be requiring a VPN connection.
Sometimes if you want to use
Some blocked websites into a country or
into a network. We generally tend to use vpns.
So, how does a VPN work?
It makes an encrypted.
Private Network tunnel to the server that
you are trying to access and it bypass restrictions through
the ISP. The server doesn't know
or the ISP doesn't know.
That which website you're going to visit.
Thus it also changes your IP addresses and
make your geo location to some other countries your location
and your thus able to reach to
the block website.