Now as I model the answer model it stands for Open Systems.
Interconnection model is a conceptual framework used to describe the functions of a networking system
as a model characterizes computing functions into a universal set of rules and requirements in order
to support interoperability between different products and software.
In the reference model, the communications between a computing system are split into seven different
abstractions.
Layer the physical data, link, networking, layer, transport, layer, session, presentation and
application.
So let's have a look here as you can see.
So here are the seven layers we have.
We have the application layer, the end user layer, HTTP, FTB.
As a substance, we have the presentation layer, the syntax layer which is SSL.
As such, I mapped FTB and you can see that the presentation like the FTV is exist in the presentation
and the application.
We have the session there for zinc and sink to port API sockets when when SOC and so on.
Transport layer.
So here is responsible for the TCP and UDP exist in the transport layer into interconnections.
We have the network, the packets IP, ICMP, IP sick GMP.
We have the data link like frames, Ethernet, PGP or Treble Treble IP.
We have switch and bridge so you can see it is inside the data link.
We have the physical finally, which is the physical structure, the Cox fibers, wireless hubs, repeaters
and so on.
Okay.
By the way, the Raptors will be here inside this layer or categorized inside this layer.
Now let's start with the physical layer.
Now, this is the lowest layer of the ozone model, which is concerned with electrically or optically
transmitting growth and structure data bits across the network from the physical layer of the sending
device to the physical layer of the receiving device.
So from sending to receiving, it can include specifications such as voltage, band layout, cabling
and radio frequencies.
At the physical layer, one might find physical resources such as network hubs, cabling, repeaters,
network adapters or modems.
Now for the data link layer.
At the data link layer.
Directly connected nodes are used to perform, not to note the transfer where data is packaged into
frames.
So the data link layer also corrects errors that may be that may have occurred at the physical layer.
And the data link layer encompasses two sub layers of its own.
So the first media access control, which is the MAC, provides flow control and multiplexing for device
transmission over into the second, which is the LLC.
The logical link control provides flow and error control over the physical medium as well as identifies
line protocols for the network layer.
The network layer is responsible for receiving frames from the data link layer and delivering them to
their intended destinations based on the addresses contained inside the frame.
Then layer finds destination by using logical addresses such as IP.
The Internet protocol.
At this layer routers are crucial component used to quite literally routing information where it needs
to go between networks.
And by the way, the router categories in this network layer or in this layer, the transporter, it
makes the delivery and error checking of data packets.
It regulates the size, sequencing and ultimately the transfer of data between systems and hosts.
One of the most common examples of the transport layer is the TB or the transmit controller, the transmission
control protocol or the UDP.
So TB and UDP are here.
The session later session later controls the conversations between different computers.
A session or connection between machines is set up, managed and determined, terminated at layer five,
which is the session there.
So session layer services also include authentication and re connections for the presentation layer.
The layer, the presentation layer formats or translate data for application layer based on the syntax
or semantics that the application accepts.
So because of this at times also called the syntax layer, this layer can also handle the encryption
and decryption required by the application.
And finally we have the application layer, which is at this layer, both the end user and the application
layer interact directly with the software application.
This layer sees network services provided to end user applications such as web browser or Office 360
5365.
The application layer identifies communication partners, resource availability and synchronizes communication.