Which two techniques are used in a network design to slow down the distribution of topology information caused by a rapidly flapping link? (Choose two.)

BFD is a fast failure detection protocol that accelerates detection of link failures - it increases the speed of convergence notification rather than slowing the distribution of topology information.

IP event dampening applies a cumulative penalty to an interface each time it flaps; once the penalty exceeds a suppress threshold, the interface state is held down and route updates are withheld, preventing repeated flooding of routing changes to neighbors.

Incremental SPF is an optimization that reduces SPF computation time by recalculating only affected nodes, but it does not limit or slow the distribution of topology updates from flapping links.

Partial SPF similarly optimizes the SPF algorithm run itself, not the rate at which topology change LSAs are generated and flooded across the network.

LSA throttling introduces configurable minimum and maximum intervals between successive LSA transmissions, limiting how frequently a flapping link's topology change is re-advertised to other routers in the OSPF domain.

SPF throttling controls how often the SPF algorithm is executed locally on a router, but it does not reduce the frequency at which topology change LSAs are generated and distributed throughout the network.