Which three QoS mechanisms will be useful in redesigning the WAN to support the mission-critical application and IP communications?

A client organization is investigating deploying IP communications. It has a traditional hub- andspoke Frame Relay WAN. It has five remote sites, and the WAN link speed for each location is
512 kbps. The WAN supports typical IP-based applications, but the client will also be rolling out a
new ERP application that will be considered mission critical. Which three QoS mechanisms will be
useful in redesigning the WAN to support the mission-critical application and IP communications?
(Choose three.)
Select 3 response(s).

A client organization is investigating deploying IP communications. It has a traditional hub- andspoke Frame Relay WAN. It has five remote sites, and the WAN link speed for each location is
512 kbps. The WAN supports typical IP-based applications, but the client will also be rolling out a
new ERP application that will be considered mission critical. Which three QoS mechanisms will be
useful in redesigning the WAN to support the mission-critical application and IP communications?
(Choose three.)
Select 3 response(s).

A.
LFI

B.
CBWFQ

C.
5 to 11 class model

D.
LLQ

E.
cRTP

F.
WFQ



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