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中国电信在部署MPLSVPN，采用的QOS业务模型为（）。
- A、DiffServ
- B、IntServ
- C、DiffServ和IntServ并重
- D、IntServ为主，同时也使用DiffServ
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以下关于DiffServ的说法，不正确的是（ ）。A.DiffServ最主要的优势是弱化了对信令的依赖
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多选题Which two statements are true about the implementation of QoS？（）AImplementing DiffServ involves the configuration of RSVP.BImplementing IntServ allows QoS to be performed by configuring only the ingress and egress devices.CImplementing IntServ involves the utilization of RSVP.DTraffic should be classified and marked by the core network devices.ETraffic should be classified and marked as close to the edge of the network as possible.
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多选题Which three statements are true about the appliance of QoS models？（）Athe DiffServ model requires applications to signal the network with QoS requirementsBthe DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addressesCthe DiffServ model requires RSVPDthe best effort model is suitable for applications such as file transfer and e-mailEthe IntServ model requires applications to signal the network with QoS requirementsFthe IntServ model model attempts to deliver a level of service based on the QoS specified by each packet
考题
单选题中国电信在部署MPLSVPN，采用的QOS业务模型为（）。A
DiffServB
IntServC
DiffServ和IntServ并重D
IntServ为主，同时也使用DiffServ
考题
单选题Which QoS model manages the QoS requirements for the network on a per-hop behavior （PHB） basis？（）A
best-effort deliveryB
ingress committed rate （ICR）C
shaping and policingD
egress committed rate （ECR）E
Integrated Services （IntServ）F
differentiated services （DiffServ）
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