A company is looking for the simplest solution to help prioritize VoIP traffic on its congested
network. Which of the following would BEST accomplish this?

A.
MPLS

B.
Caching engines

C.
QoS

D.
Load balancing

Explanation:
QoS is the service where you can prioritize traffic running over one protocol as
compared to the other. It is very similar to the term where you are opening a VIP queue for
allowing that traffic to pass.