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IntServ是 QoS的一种方式，它主要协议是（ ）
A.SLA
B.RSVP
C.ITS
D.VPN
B.RSVP
C.ITS
D.VPN
参考答案
参考解析
解析：IntServ实现QoS的基本思想是，在通信开始之前利用资源预留方式为通信双方预留所需的资源，保证所需要的QoS。
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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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What is a drawback to using the IntServ model？（）A、RSVP that signals QoS requests per individual flowB、not scalable to large implementationsC、admission control not supportedD、use of dynamic port numbers E、UDP not supported
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Which three statements are true about the appliance of QoS models？（）A、the DiffServ model requires applications to signal the network with QoS requirementsB、the DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addressesC、the DiffServ model requires RSVPD、the best effort model is suitable for applications such as file transfer and e-mailE、the IntServ model requires applications to signal the network with QoS requirementsF、the IntServ model model attempts to deliver a level of service based on the QoS specified by each packet
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Which two statements are true about the implementation of QoS？ （）A、 Implementing DiffServ involves the configuration of RSVP.B、 Implementing IntServ allows QoS to be performed by configuring only the ingress and egress devices.C、 Implementing IntServ involves the utilization of RSVP.D、 Traffic should be classified and marked by the core network devices.E、 Traffic should be classified and marked as close to the edge of the network as possible.
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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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多选题What are two components of the QoS Integrated Services （IntServ） model？（）Alink efficiencyBadmission controlCclassification and markingDshaping and policingEcongestion avoidance using the RTP protocolFresource reservation using the RSVP protocol
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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
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