Refer to the exhibit. AN engineer is configuring segment routing on an ISP to simplify traffic engineering and management across network domains. What should the engineer do to complete the…

Configuring OSPF with wide area metrics is an OSPF-specific feature for adjusting path calculations, but it is not a mandatory or direct step to complete the fundamental implementation of Segment Routing itself.

Segment Routing requires specific configuration steps, including enabling its capability within the IGP and configuring its forwarding plane, so it will not run automatically without further action.

Area authentication is a security feature for routing protocols like OSPF or IS-IS to secure neighbor adjacencies, and it is not a prerequisite for Segment Routing functionality to operate.

The `segment-routing forwarding mpls` command (or similar, such as `segment-routing mpls` in the IGP context) is essential in Cisco IOS XR to enable the Segment Routing MPLS data plane. This command ensures that Segment Identifiers (SIDs) are correctly programmed into the MPLS forwarding information base (LFIB), allowing packets to be forwarded based on their segment list.