Roadmap · lesson index/Level 3
Networking Fundamentals
TCP/IP, OSI, IP addressing, ports, DNS, HTTP and how data moves across networks.
- Prerequisites
- Assessment
- Networking quiz + packet-analysis lab write-up.
Lessons
- 1.TCP/IP
- 2.OSI Model
- 3.IP Addressing & Subnetting
- 4.Ports & Protocols
- 5.DNS
- 6.HTTP/HTTPS
- 7.Firewalls & NAT
- 8.Packet Analysis
42 levels total — search them on Roadmap.