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OSI REFERENCE MODEL LAYERS (APPLICATION LAYER (Enables users to access the…
OSI REFERENCE MODEL LAYERS
APPLICATION LAYER
Enables users to access the network with application
Example: email,web,file transfer
PRESENTATION LAYER
Receives information from the application layer and converts if to a form
EXAMPLE CONVERT INFORMATION TO
ASCII,ENCRYPTS,DECRYPT
SESSION LAYER
-Control the dialogs between computer
-Control :duplexing,termination and restart
TRANSPORT LAYER
Provides transparent transfer of data
Datagrams are called segment
NETWORK
Provides connections between hosts on different networks
Example: IPv4 and IPv6
Rounting of packets
Datagrams are called packets
DATA LINK
Provides connections between hosts on the same network
Example: Ethernet and MAC addresses
Datagrams are called Frames
PHYSICAL
Describes electrical and physical specifications for devices
Example: cable,connectors, hubs, repeaters
Datagrams is called bits
WHAT IS THE OSI REFERENCE MODEL?
it is a seven layer conceptual model