多项选择题

In which three network technologies is traffic shaping used to prevent and manage congestion？（）

A.Asynchronous Transfer Mode （ATM）
B.data-link switching （DLSw）
C.Route Processor Redundancy （RPR）
D.Frame Relay （FR）
E.Metro Ethernet
F.Multiprotocol Label Switching （MPLS）

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热门试题

单项选择题

Whatbestdescribesprocessingdelay？（）

A.the time required from receipt of the incoming frame， until the frame/packet has been queued for transmission
B.the time taken for a single packet to traverse the physical medium from one end to the other
C.the time taken to place a frame on the physical medium for transport
D.the time spent for a packet to reside in the output queue of a router

单项选择题

WhichQoSmodelmanagestheQoSrequirementsforthenetworkonaper-hopbehavior（PHB）basis？（）

A.best-effort delivery
B.ingress committed rate （ICR）
C.shaping and policing
D.egress committed rate （ECR）
E.Integrated Services （IntServ）
F.differentiated services （DiffServ）

In which three network technologies is traffic shaping used to prevent and manage congestion？ （）

In which three network technologies is traffic shaping used to prevent and manage congestion？（）