An engineer is using DMVPN to provide secure connectivity between a data center and remote sites. Which two routing protocols should be used between the routers? (Choose two.)

IS-IS does not support operation over NBMA tunnel networks and lacks the dynamic spoke registration model compatibility required for DMVPN.

BGP is recommended for DMVPN deployments because it does not rely on multicast for neighbor discovery, avoids NBMA adjacency issues common with link-state protocols, and supports granular route policy control between hub and spoke routers. It scales efficiently as the number of spokes increases without requiring complex per-interface tuning.

RIPv2 lacks scalability, adequate convergence speed, and policy control mechanisms needed for reliable enterprise DMVPN deployments.

OSPF requires non-default network-type configuration to function over DMVPN NBMA interfaces and has inherent adjacency and flooding limitations in hub-and-spoke topologies.

EIGRP requires disabling split-horizon per interface on the hub to propagate spoke routes, adding configuration complexity that makes it less straightforward than BGP for this use case.