Networking

Not written yet. Questions to answer here: what each layer is responsible for and where that model leaks, what a switch does that a router does not, what a VLAN separates and why an office and a manufacturing line would want to be separated, how DNS and DHCP actually resolve, what NAT breaks, what TCP guarantees and what that costs in latency, how a Kubernetes cluster’s network overlays the physical one, and how to read a packet capture well enough to find where something is being dropped.