What is Cisco Packet Tracer?

Cisco Packet Tracer is a powerful network simulation tool developed by Cisco Systems, primarily for use in Cisco Networking Academy courses. It allows students and network professionals to create virtual network topologies, configure devices (like routers, switches, and PCs), and troubleshoot network issues using a command-line interface and a graphical user interface. It's commonly used for learning networking concepts, practicing network configurations, and simulating network behavior without requiring physical hardware.