Refer to the exhibit.

A customer is running an mGRE DMVPN tunnel over WAN infrastructure between hub and spoke sites. The existing configuration allows NHRP to add spoke routers automatically to the multicast NHRP mappings. The customer is migrated the network from IPv4 to the IPv6 addressing scheme for those spokes' routers that support IPv6 and can run DMVPN tunnel over the IPv6 network. Which configuration must be applied to support IPv4 and IPv6 DMVPN tunnel on spoke routers?

Refer to the exhibit.

A network engineer must establish communication between three different customer sites with these requirements:
Site-A: must be restricted to access to any users at Site-B or Site-C.
Site-B and Site-C must be able to communicate between sites and share routes using OSPF.

Which configuration meets the requirements?

Refer to the exhibit.

The administrator noticed that the connection was flapping between the two ISPs instead of switching to ISP2 when the ISP1 failed. Which action resolves the issue?

Refer to the exhibit.


The network administrator configured the network to connect two disjointed networks and ail the connectivity is up except the virtual link which causes area 250 to be unreachable. Which two configurations resolve this issue? (Choose two.)