Networking fundamentals that can actually help you get hired in tech:
① Network → connects devices so they can communicate
② IP Address → unique address of a device on a network
③ IPv4 → common IP format like 192.168.1.1
④ IPv6 → newer IP format for more address space
⑤ MAC Address → hardware address of a network device
⑥ Router → connects different networks together
⑦ Switch → connects devices inside the same network
⑧ Modem → connects your network to the internet
⑨ LAN → local network inside home/office
⑩ WAN → network spread across large areas
⑪ DNS → converts domain names into IP addresses
⑫ DHCP → automatically assigns IP addresses
⑬ TCP → reliable communication protocol
⑭ UDP → faster but less reliable protocol
⑮ HTTP → protocol for web communication
⑯ HTTPS → secure version of HTTP
⑰ Port → entry point for network services
⑱ Firewall → controls allowed and blocked traffic
⑲ Subnet → smaller section of a network
⑳ CIDR → defines IP range size
㉑ Gateway → path from one network to another
㉒ NAT → lets private IPs access the internet
㉓ VPN → secure private connection over the internet
㉔ Ping → tests if a device is reachable
㉕ Traceroute → shows the path traffic takes
If you want to work in cloud, cybersecurity, DevOps, or IT…
Don’t skip networking.
Most tech systems fail, scale, connect, and secure themselves through networks.
Networking becomes easier when you stop memorizing terms
and start understanding how devices talk to each other.