OSI Model and TCP/IP — Roadmap Step & Resources
How data actually moves across a network, and where attacks target each layer
- Level: beginner
- Estimated time: 1 days
- Roadmap: Cybersecurity Analyst / Ethical Hacker
Before this step
Study resources
- OSI Model Explained (Article) — Cloudflare's widely-cited, clear explanation of the seven OSI layers.
- System Design for Beginners Course (Video) — A detailed, well-regarded introduction to system design covering the core building blocks used throughout this roadmap.
- Networking Fundamentals for Cybersecurity (Video) — NetworkChuck's practical introduction to networking concepts security professionals need.
Part of
- Networking for Security — section
- Cybersecurity Analyst / Ethical Hacker roadmap — the full learning path