When does Count-to-infinity happen?

Never advertise a destination through its next hop is the principle of which one?

Dijkstra's Algorithm is used for?

In which mechanism, Router A will advertise the router that it knows from its neighbor back but specifying the infinity cost?

Which protocol that each router must have the complete knowledge about all other routers in the same network?

Which protocol takes the longer time until the convergence?

Which protocol has the load balancing feature?