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）
相关考题
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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） -
单项选择题
Refer to the exhibit. The auto discovery qos command was configured on this interface 24 hours prior to the above configuration. Which statement is true about the configuration?（）
A. An IP address is needed on interface seriall/2.
B.The auto discovery qos command should be configured on the subinterface
C.A generated AutoOoS policy has been applied to serial1/2.
D.The collection of data has stopped.
