A customer is using a service provider to provide a WAN backbone for a 30-site network. In establishing the network, the customer must work within these constraints:
- The customer has a self-managed MPLS backbone.
- The VPLS WAN backbone of the service provider does not support PIM snooping.
- Multicast VPN must be used for multicast support inside some VRFs.
What can the customer do so that multicast traffic is NOT flooded to all sites?

Refer to the exhibit.

In this network design, where should summarization occur to provide the best summarization and optimal paths during a single-failure incident as well as during normal operation?

Which two OSPF network types can be used in the design of a hub tunnel interface for a phase 3 DMVPN that requires spoke-to-spoke direct traffic? (Choose two)

Refer to the exhibit.

This Layer 2 ring has 10 VLANs with 1000 MAC addresses in each VLAN. Which protocol or mechanism provides the shortest traffic outage if the link marked with "X" fails?

What must you consider when designing IPsec networks using Authentication Header?