Câu 107: 350-501: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR)

The network-engineering team of a service provider is integrating several recently acquired networks into a more scalable common Unified MPLS architecture. The new network architecture will support end-to-end VPNv4 and VPNv6 services with these requirements: ✑ The IGP of the core layer is IS-IS in Area 0. ✑ The IGP of the aggregation layers is OSPF in Area 0. ✑ The LDP protocol is used to distribute label bindings within each IGP domain. Which task must the network engineer perform when implementing this new architecture?

1. A. Configure a BGP session between the ABR routers of each IGP domain to exchange VPNv4 or VPNv6 prefixes.
2. B. Configure mutual redistribution of each IGP domain's loopback prefix to provide end-to-end LDP LSP.
3. C. Configure the ABR in each IGP domain to preserve next-hop information on all VPNv4 and VPNv6 prefixes advertised by the PE.
4. D. Configure BGP-LU between ABR routers of each IGP domain to carry MPLS label information in NLRI. — đáp án hiện tại