You are the Voice technician at TestKing, Inc. You want to deploy an IP telephony solution for the company. The TestKing network is currently a traditional LAN/WAN based on Frame Relay.
Your CEO has read about the issues of converging both data and voice traffic onto a single network. She is concerned about the quality of their calls that need to cross the WAN in particularly.
What would you need to implement to ensure QoS forVoIPover Frame Relay?

A.
Traffic shaping, priority queuing, Call Admission Control, and Class Based Weighted Fair Queuing

B.
Traffic shaping, priority queuing, Call Admission Control, and Weighted Random Early Detection

C.
Fragmentation, traffic shaping, priority queuing, Low Latency Queuing, and link efficiency withcRTP.

D.
Fragmentation, traffic shaping, priority queuing, Call Admission Control, and Weighted Random Early Detection