Network simulators is a computer program that, as the name suggests, simulate a network topology with one or more network devices. This piece of networking software pretends to be a real network device allowing users to study the dynamic nature of communication networks. Cisco Packet Tracer is a visual simulation tool developed by Cisco that provides users with the opportunity to create network topologies and imitates modern computer networks. It allows you to simulate the configurations of Cisco routers and switches using the help of a simulated line interface. If you are a student needing a platform that lets you carry out simulation exercises without limit, this app is one of your best choices.