It is a simulation tool which allows user to create their simple or complex own network topological and configuring of Router and Switches in their topology.
Everything in Packet Treacer is virtual.
It works on Command Line Interface.
It is Well Practice for beginner to known about how two computers is communicating and passing information with each other. Review collected by and hosted on G2.com.
It can work on small numbers os Cisco devices If you are working on Big Projects you might need more.
The real world is not the same as the Cisco devices you have. You can only try. Review collected by and hosted on G2.com.
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