CCNA Network Simulator & Router Simulator - 640-802. Cisco > CCENT | CCNA > Boson NetSim for CCNA 8.0 (640-802) Boson NetSim for CCNA 8.0 (640-802) The 640-802 Cisco® Certified Network Associate (CCNA®) composite exam is associated with the Cisco Certified Network Associate certification. Cisco Systems, Inc. CCNA - Career Certifications & Paths.