InterfacecongestioniscausingdropsinvoicepacketsandTCPpackets.ThedropsresultinjerkyspeechqualityandslowerFTPtrafficflows.WhichtwotechnologieswouldproactivelyaddresstheTCPtransferrateandthevoiceproblems?()
A.CBWFQ
B.LLQ
C.trafficshaping
D.WRED