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CCNA 640-802 Network Simulator, Second Edition is a single-user software package. It helps users develop and enhance hands-on configuration and troubleshooting skills without the investment in expensive lab hardware. This second edition has been updated to include 50 new labs focused exclusively on subnetting practice. These new labs help users to perform subnetting calculations very quickly and accurately, a critical skill for success on the CCNA exams.Other products from Pearson Education (InformIT)