Which component is responsible for routing protocols such as BGP and OSPF in a Cisco SD-WAN solution?

Refer to the exhibit. The ge0/0 interface connects to a 30-MB link. A network administrator wants to always have 10 MB available for high priority traffic. When lower-priority traffic busts exceed 20 MB. Traffic should be redirected to the second WAN interface ge0/1. Which set of configurations accomplishes this task?
A)

B)

C)

D)

An administrator needs to configure SD-WAN to divert traffic from the company's private network to an ISP network. What action should be taken to accomplish this goal?

Which component of the Cisco SD-WAN secure extensible network provides a single pane of glass approach to network monitoring and configuration?

Which software security feature is supported by the Cisco ISR 4451 router?