Hello aspirant,

Routing is a process which is performed by layer 3 (or network layer) devices in order to deliver the packet by choosing an optimal path from one network to another.

There are 3 types of routing:
1. Static routing –
Static routing is a process in which we have to manually add routes in routing table.

2. Default Routing –
This is the method where the router is configured to send all packets towards a single router . It is generally used with stub routers. A stub router is a router which has only one route to reach all other networks.

3. Dynamic Routing –

Dynamic routing makes automatic adjustment of the routes according to the current state of the route in the routing table. Dynamic routing uses protocols to discover network destinations and the routes to reach it. RIP and OSPF are the best examples of dynamic routing protocol.

Hope this helps you

Feel free to ask any questions

All the best for your future