Which are the two limitations of the predefined NAT solution? (Choose two)

After implement MPLS protocol for multiple VRFs on a single Cisco device, the engineer notices all VRFs on the router still do to not LDP session protection feature enabled. Which configuration must the engineer apply to enable the LDP session protection feature FOR LDP neighbors within each VRF?

Refer to the exhibit:

Which information is provided for traceback analysis when this configuration is applied?

Refer to the exhibit:

When implementing an LDP protocol, an engineer experienced an issue between two directly connected routers and noticed that no LDP neighbor exists for 1.1.1.1.
Which factor should be the reason for this situation?

Refer to the exhibit. Which troubleshooting the OSPF adjacency between routers R1 and r2, an engineer noticed that both router and stuck in the EXCHANGE/START. What should the engineer fix to solve the ongoing issue?