Which two routing protocols provide connectivity between the Cisco ACI fabric external Layer 3 devices? (Choose two.)

OSPF (Open Shortest Path First) is a commonly supported IGP (Interior Gateway Protocol) used by Cisco ACI to exchange routes with external Layer 3 networks.

BGP (Border Gateway Protocol) is a widely supported EGP (Exterior Gateway Protocol) and is used by Cisco ACI for external Layer 3 connectivity, especially for connecting to large-scale networks or the internet.

RIP (Routing Information Protocol) is an older, less scalable routing protocol and is generally not used for external Layer 3 connectivity with Cisco ACI.

ISIS (Intermediate System to Intermediate System) is an IGP but is not typically supported or configured for direct external Layer 3 routing within Cisco ACI as OSPF and BGP are.

RIPng is the IPv6 version of RIP and, like RIP, is generally not supported or recommended for external Layer 3 connectivity with Cisco ACI.