Which regular expression query modifier function indicates the start of a string?

Refer the exhibit.

Users on a network connected to router R3 report slow speeds when they connect to the server connected to R2. After analyzing traffic on the network, a network engineer identified congestion on the link between R2 and R3 as the cause. Which QoS service must the engineer implement to drop traffic on the link when it exceeds a configured threshold?

Refer to the exhibit.

An engineer wants to determine which paths are best, second best, third best, and fourth best. Drag and drop the peer addresses on the left to the corresponding BGP best-path selection order on the right.

What is a characteristic of MVPN?

Which statement describes the advantage of a Multi Layer control plane?