Networking Fundamentals

• Network types: LAN, WAN, MAN, PAN
• OSI/TCP-IP models, devices, topologies

IP Addressing & Subnetting

• IPv4 vs IPv6, subnetting, CIDR

Protocols

• TCP, UDP, DHCP, DNS, HTTP/HTTPS

Network Infrastructure

• Ethernet, Wi-Fi (802.11 a/b/g/n/ac/ax), VLANs
• Router/switch/firewall setup

Network Security

• ACLs, VPN, RADIUS, WPA2/WPA3

Troubleshooting Tools

• ping, tracert, nslookup, ipconfig, cable testers