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Updated: Aug 17, 2026
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Cisco 640-823 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Routing Fundamentals | 25% | - RIPv2 configuration and verification - Static and default routing - Routing concepts and tables - Router configuration and management |
| Topic 2: Network Fundamentals | 20% | - OSI and TCP/IP models - IPv6 addressing and configuration - Ethernet technologies and operations - TCP/UDP transport layer protocols - IPv4 addressing and subnetting |
| Topic 3: LAN Switching Fundamentals | 26% | - Switch security and management - Switch operation and configuration - Troubleshooting switch issues - VLANs and trunking |
| Topic 4: Infrastructure Maintenance | 9% | - Basic network troubleshooting - Device configuration management - IOS file system and backup |
| Topic 5: Infrastructure Services | 20% | - DHCP server and relay - DNS and NTP services - Basic wireless concepts - NAT operations and configuration |
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