Oh, yes, I would do the same, whether it stands for open systems interconnection, whether it is
a conceptual framework used to describe the functions of a networking system that I imagine characterizes
computing functions into a universal set of rules and requirements in order to support interoperability
between different products and software in the executive branch model, the communications between a
computing system and split into seven different abstractions.
Then the physical datalink networking, now transport last session, presentation and application.
So let's have a look here, as you can see.
So here are then seven layers.
We have we have the application are the end user.
They are actually be EFTPOS as such DNS.
We have that presentation there, the syntax there, which is SLAC and as such a map to be.
And you can see that the presentation, like the FTB is exists in the presentation and the application.
We have the session left for zinc and zinc to port at the eye sockets window and so forth and so on,
transport there.
So he is responsible for the TCAP and UTB exists in the transport that into interconnections.
We have the network, the Becket's.
I'd be ICMP, I'd be sick.
ICMP We have the datalink that frames Ethernet PBP or Triple B, we have switch and bridge.
So you can see it is inside the datalink.
We have the physical finally, which is the physical structure, the Cox fibres, wireless hubs, baby
steps.
And so OK, by the way, the doctors will be here inside this layer or categorised inside this layer.
Now, let's start with the physical there.
Now, this is the lowest layer of the Amazon which is concerned with electrically or optically transmitting
raw, unstructured data bits across the network from the physical layer of the sending device to the
physical layer of the receiving device.
OK, so from Sinding to receiving, it can include specifications such as voltage bean layout, cabling
and radio frequencies.
At the physical layer, one might find physical resources such as network cabling, repeaters, network
adapters or modems.
Now for the player.
At the Datalink lab, directly connected nodes are used to perform not to not transfer where the heart
is back into frames, so that can now also corrects errors that may be that may have occurred at the
physical level and the Datalink Claire incumbencies to suppliers of its own.
So the first media access control, which is the provides floor control and multiplexing for device
transmission over into the second, which is the L.L.C..
The logical control provides flow and it'll control over the physical medium as well as identifies the
line protocols for the network man.
Then it is responsible for receiving Prem's from the datalink layer and delivering them to their intended
destinations.
AMOC based on the addresses contained inside the Pentagon and finds the destination by using logic and
addresses such as I.B. the Internet protocol best.
Their doctors are crucial component used to quite literally around information where it needs to go
between Mitra's.
And by the way, the doctor categorized in this plan or in the cell that transported it makes the delivery
and error checking of data packets.
It regulates their size sequencing and ultimately the transfer of data between systems and hosts.
One of the most common examples of the transport layer is the TCB or the transmit control, the transmission
control protocol, or they would be so TCAP and you'd be out here.
The session left such a large contrast, the conversations between different computers obsession, such
an connection between machine is set up, managed and terminated, terminated at five, which is a decision
that so essential services also include authentication and reconnections for the presentation layer.
The layout, the presentation that formats or translated that for a beginning layer based on the syntax
or semantics that the application exits.
So because of this, I don't want to call the syntax down.
This NURCAN also handed the encryption and decryption required by the application.
And finally, we have the application now, which is at this, they are both the end user and the application
now interact directly with the software application.
This lab sees network services provided to end user applications such as Web browser or Office 365 365
application.
They are identified as communication partners, resource availability and synchronises communication.