CCNA 1: Introduction to Networks: Covers the basics of networking, including network models, protocols, and IP addressing. It focuses on foundational concepts like Ethernet, subnetting, and network topologies.
CCNA 2: Switching, Routing, and Wireless Essentials: Dives into the functionality and configuration of switches and routers, VLANs, STP, and basic wireless networking. It emphasizes routing protocols like OSPF and includes hands-on labs.
CCNA 3: Enterprise Networking, Security, and Automation: Explores advanced routing and switching technologies, network security concepts, and automation. Topics include QoS, WAN technologies, VPNs, and network automation tools.
CCNA Security: Focuses on network security principles and practices. It covers threat management, secure network devices, firewall and VPN configurations, and implementing security policies to protect against cyber threats