Which one of the following technologies allows a router to route traffic according to the size of the incoming packet?

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?

Select and Place:

You are asked to design a traffic policy to restrict traffic leaving a customer site. Which technique is recommended to enforce a traffic leaving the site?

What are two possible drawbacks of ending Loop-Free Alternate to support fast convergence for most destination IGP prefixes? (Choose two)