Part 9: Networking Fundamentals
15 items
- Why this matters
- The OSI layers (just enough)
- DNS
- Load balancers (AWS specifically)
- TLS / HTTPS
- HTTP status codes — operational guide
- 2xx — Success
- 3xx — Redirection
- 4xx — Client errors
- 5xx — Server errors
- Quick reference: which layer typically owns each code
- The "trace by status code" mental model
- Web app troubleshooting flow (the one Ben asked about)
- CDN (Cloudflare specifically)
- Crisp networking interview answers