Short description of CCNA Network Visualizer 5.0: CCNA Network Visualizer 5.0 is a CCNA network simulator that allows you to design, build and configure your own network with drag and drop design. Use unlimited devices, 470 commands and work with over 220 supported labs in building your virtual networks. You can also design, create, and configure your own virtual networks. Our new feature, Net Assessment, allows you to test your problem-solving and troubleshooting skills.