Which two factors can significantly affect the OSPF network convergence time? (Choose two.)

OSPF LSA throttle timers, SPF delay timers, and hello/dead interval timers directly control the speed of failure detection, LSA flooding, and SPF recalculation. Reducing these timers accelerates convergence, while inflated defaults can introduce seconds of unnecessary delay. Tuning these timers is the most impactful configuration change an operator can make to improve OSPF convergence.

The number of OSPF routes increases SPF computation complexity, but this effect is already captured by the processor capability factor in D and is not an independently controllable design variable that significantly drives convergence time on its own.

Network diameter determines how many hops an LSA must traverse during flooding and adds some propagation delay, but this delay is typically small compared to the impact of LSA timer settings and is not a primary convergence factor.

Routers with slower CPUs take longer to generate, process, and acknowledge LSAs as well as to execute the Dijkstra SPF algorithm on the LSDB. This per-device processing delay accumulates across the topology and can significantly extend the total time before all routers have a consistent view. Heterogeneous processor capabilities create bottlenecks that timer tuning alone cannot fully compensate for.