Network Hardware HUB
Hub An unintelligent network device that sends one signal to all of the stations connected to it. All computers/devices are competing for...
The application layer
The application layer
Closest’ layer to the user Works with the applications you use to communicate over the network E.g.. Services include SMTP, HTTP , DNS;...
The presentation layer
The presentation layer
Ensures that the information that the application layer of one system sends out is readable by the application layer of another system. Fo...
The session layer
The session layer
Establishes, manages, and terminates sessions between two communicating hosts. Sessions Dialog Conversations Data exchange The Ses...
The transport layer
The transport layer
Provides reliable, transparent transfer of data over networks. Segments, data stream, datagram Connection oriented and connectionless. ...
The network layer
The network layer
Provides connectivity and path selection between two host systems that may be located on geographically separated networks. Packets Virt...
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