Voice traffic between two campus enterprise networks is growing. The network designers decide to add a second 10-Mb Metro Ethernet service parallel to their original 10-Mb service in order to provide more bandwidth and diversity. The QoS profile will be the same on the new 10-Mb service due to the voice stability on the first Metro Ethernet link. When the second link is added to the OSPF domain, which traffic design consideration would have the most impact on the voice traffic when both links are active?
A. per-destination IP address basis
B. per-flow basis
C. per-packet basis
D. per-source IP address basis
Answer: C
You work as a network designer for a company that is replacing their Frame Relay WAN with an MPLS VPN service, where the PE-to-CE routing protocol is BGP. The company has 3000 routes in their distribution routers, and they would like to advertise their access routers through the MPLS network. Their service provider, however, only supports 1000 prefixes per VRF. Which two design solutions can be applied to ensure that your access routers will be able to reach all devices in your network? (Choose two.)
A. Use prefix lists on your distribution routers to control which routes are sent to the MPLS network.
B. On your distribution routers, configure null routes and aggregate routes for the prefixes in your network.
C. Configure your distribution routers to send a default route to the MPLS network.
D. Summarize the routes on the MPLS WAN interfaces of your distribution routers.
Answer: B, C
