Split the data into packets
This layer makes possible divide a
way to exchange data or a
common local media
Send packets to address
Supplies the means to exchange
pieces of data over the network
between identified and devices.
Ensures that packets arrive,
and error free and are in
Established and coordinates connection
This layer establishes, manages, and
terminates connection also known as
session between 2 network address
Allows transfer of files between different
formats. Encryption is one of the services
in this layer.
Encryption is the translation of data into a
secret code. Encryption is the most
effective way for data security. To read an
encrypted file you must have a password
or a secret key.
This is the layer where people do their work
, such as sending e-mail or requesting to
transfer a file across the network
E-mail, files requests, file transfers, etc.
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