Which two technologies can be implemented to improve the quality of the customer’s VoIP traffic?

A regional operation center deployed SQL servers that were synchronized with the company’s backend storage servers by using a 768 Kbps link. Although network congestion is not a frequent issue, the VoIP service suffers a serious degradation.

Which two technologies can be implemented to improve the quality of the customer’s VoIP traffic? (Choose two)
A . A decrease in the wan interface buffer size
B . LLQ for management traffic
C . cRTP
D . TCP/UDP filtering based on NBAR
E . TCP traffic prioritization
F . LFI
G . TCP starvation

Answer: C, F