Which two key QoS elements should be included in the new network design?

A customer has a data and VoIP converged network and would like to add video to this network.

Which two key QoS elements should be included in the new network design? (Choose two.)
A . Configure bandwidth management features to smooth bursty traffic and mitigate end-to-end congestion.
B . Assign a high priority to transactional traffic to maintain quality of business traffic.
C . Keep video traffic on the low latency queue and move voice traffic to a lower-priority queue.
D . Apply bandwidth control features that will guarantee bandwidth for the maximum possible amount of video traffic.
E . Assign both video and voice traffic to use the highest-priority queue.

Answer: A, D