Learn Network Links

https://en.wikipedia.org/wiki/Static_routing
https://en.wikipedia.org/wiki/Dynamic_routing
https://en.wikipedia.org/wiki/Convergence_(routing)
https://en.wikipedia.org/wiki/Routing_in_delay-tolerant_networking

How DNS Works

DNS is a three step process

1. Resolving Name Server
2. Root DNS Server
3. TLD(Top Level Domain) Name Server (.com, .in, gov etc)
4. Authoratative Name Server -> Primarly gives the IP