An engineer needs dynamic routing between two routers and is unable to establish OSPF adjacency. The output of the show ip ospf neighbor command shows that the neighbor state is EXSTART/EXCHANGE. Which action should be taken to resolve this issue?

Refer to the exhibit. A network administrator redistributed the default static route into OSPF toward all internal routers to reach to Internet. Which set of commands restores reachability to the Internet by internal routers?
Refer to the exhibits.

When DMVPN is configured, which configuration allows spoke-to-spoke communication using loopback as a tunnel source?
Which two protocols work in the control plane of P routers across the MPLS cloud? (choose two)