Networking concepts come alive when you can see them in action. That's where Cisco Packet Tracer comes in: it lets you build, connect, and visualize network devices—from switches and routers to end devices—without physical hardware. Network simulation tools bridge the gap between theory and practice. Whether you're preparing for CCNA or exploring networking fundamentals, hands-on experience with device configuration and network design is critical. Watch the full video on our YouTube channel to j

HOW TO USE OPNET NETWORK SIMULATOR

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