What do routers used to select best paths for outgoing data packets?

Routers use routing tables and algorithms to select the best paths for outgoing data packets. Routing tables contain information about network destinations and the associated next hops, while algorithms like Distance Vector or Link State help determine the optimal route based on factors such as distance, cost, and network topology. Additionally, protocols like OSPF and BGP enable routers to exchange routing information dynamically, adapting to network changes and ensuring efficient data packet delivery.