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Transcript of TCP/IP
What is it?
Transmission Control Protocol /Internet Protocol is the suite of communication
protocols used to connect computers on the internet.
TCP/IP is the internationally accepted standard for transmitting data over networks.
TCP/IP is understood as being divided into four layers or stacks.
the transport layer
the network layer
the datalink layer
the physical layer
What does it look like?
How does it work?
tcp/ip stack diagram
What's in the layers and what do they do?
Layer 4 - Transport (TCP & UDP)
Transmission Control Protocol on layer 4 is responsible for processing applications
such as FTP (FileTransfer Protocol) and SMTP (Simple Mail Transfer Protocol). TCP is a more
reliable protocol used for email and file transfers which require a high degree of accuracy.
UDP (User Datagram Protocol) is a less reliable protocol used for the SNMP (Simple Network Management Protocol)
Layer 3 - Internet (IP & ARP)
Internet Protocol (IP) and Address Resolution Protocol (ARP) are responsible for the routing and delivery of data packets across the networks.
Layers 1 & 2 Data Link & Physical (ADP & MAC)
The physical layer is the hardware layer handling cables, network cards, satellite signals etc.
Media Access Protocol (MAC) and Application Distribution Protocol (ADP) operate at the data link layer providing functionality for cabling connectivity.
How does it all fit together?
TCP/IP protocols function as a
form of transportation and delivery service to encode data, i.e. email, images, text or web pages into units of binary data for transportation via the internet, and then to reassemble the data into its original form at its destination.
TCP/IP protocols are responsible for the transportation and
delivery of messages on the internet.
TCP/IP protocols function as a form of transportation and delivery service to encode application data, i.e. email, images, text or web pages, into packets of binary data for transportation via the internet, and then to reassemble the data into its original form at its destination.
TCP/IP Lab exercises
In pairs complete your hand out on
with your name and code:
Complete the tcp/ip quiz
Task 3 extension activity
Complete your handout on binary conversions
using the table provided.