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QoS Mechanisms：问在部署QoS中要用的3个mechanisms是什么？
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以下关于QOS的设计方法正确的是()。
A.在规划QOS时，可以不考虑VOIP业务，因为它占用的带宽资源少B.QOS功能可以实现对流量的限速C.交换机的QOS采用硬件队列实现D.QOS仅在接入层部署
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VPN网络部署QOS中,说法正确的是()。
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QoS管理的易用性体现在（）A、通过命令行实现配置操作B、业务流量特征库，基于RFC4594和四层特征进行业务标准化分类C、基于预置QoS模板，提供常见业务流的快速部署和通用流的QoS快速部署D、支持图形化的QoS策略部署概览（展示队列、带宽等信息）
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以下关于QOS 的设计方法正确的是（）A、 在规划QOS 时，可以不考虑VOIP 业务，因为它占用的带宽资源少B、 QOS 功能可以实现对流量的限速C、 交换机的QOS 采用硬件队列实现D、 QOS 仅在接入层部署
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VPN 网络部署QOS 中，说法正确的是（） A、 QOS 的流分类动作必须在VPN 封装前完成B、 带宽保证，队列调度等QOS 功能需要在设备的出口处进行部署C、 QOS 可以在通过Internet 组建的VPN 网络中进行部署D、 QOS 的流分类动作可以在VPN 封装完成后实施
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What are two characteristics of the DiffServ model？（）A、service guaranteeB、traffic that is divided into classesC、not scalable to large implementationsD、QoS mechanisms that are used without prior signalingE、applications that signal their particular QoS and bandwidth requirements
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What are two QoS mechanisms that are used to prevent packet loss？（）A、header compressionB、payload compressionC、low latency queuing （LLQ）D、weighted random early detection （WRED）E、traffic policingF、traffic shaping
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Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）A、The use of a queuing method that will give VoIP traffic strict priority over other trafficB、The use of RTP header compression for the VoIP trafficC、The proper classification and marking of the traffic as close to the source as possibleD、The use of 802.1QinQ trunking for VoIP trafficE、The use of WRED
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多选题Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）AThe use of a queuing method that will give VoIP traffic strict priority over other trafficBThe use of RTP header compression for the VoIP trafficCThe proper classification and marking of the traffic as close to the source as possibleDThe use of 802.1QinQ trunking for VoIP trafficEThe use of WRED
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单选题以下哪个系统可以完成网络中Qos模板的定制管理、Qos的规划、部署、审计、监控等功能（）。A
iManagerN2000 DMSB
iManagerNSM Qos ManagerC
iManager D2610D
iManagerNSM VPN Manager
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多选题Which two authentication mechanisms provide weaker protection than other mechanisms？（）AHTTP Basic AuthenticationBForm Based AuthenticationCHTTP Digest AuthenticationDHTTPS Client Authentication
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多选题What are two QoS mechanisms that are used to prevent packet loss？（）Aheader compressionBpayload compressionClow latency queuing （LLQ）Dweighted random early detection （WRED）Etraffic policingFtraffic shaping
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多选题In the design of a QoS solution， which two factors should be taken into consideration？（）AOn congested links， all forms of traffic will require some form of QoS.BAll traffic types and requirements should be examined to determine the number of traffic classes required.CIn the implementation of link efficiency mechanisms on links that typically transport relatively large packets， header compression will be most efficient.DIn the implementation of link efficiency mechanisms on links that typically transport relatively small packets， header compression will be most efficient.EIn the implementation of link efficiency mechanisms on links that typically transport relatively small packets， payload compression will be most efficient.FPayload compression provides more available bandwidth and reduces processing delay time.
考题
多选题Which three QoS mechanisms can be configured to improve VoIP quality on a converged network？（）AThe use of a queuing method that will give VoIP traffic strict priority over other trafficBThe use of RTP header compression for the VoIP traffic.CThe proper classification and marking of the traffic as close to the source as possibleDThe use of 802.1QinQ trunking for VoIP trafficEThe use of WRED for the VoIP traffic
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