多选题What are the three models of quality of service （QoS） in a network？（）AResource Reservation Protocol （RSVP）Bfirst-in， first-out （FIFO）Cbest-effortDCBWFQEIntServFDiffServ
多选题
What are the three models of quality of service （QoS） in a network？（）
A
Resource Reservation Protocol （RSVP）
B
first-in， first-out （FIFO）
C
best-effort
D
CBWFQ
E
IntServ
F
DiffServ
参考解析
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