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城域骨干网以基于DiffServ为主的QoS技术提供突发拥塞时的QoS保证。
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下列关于宽带城域网技术的描述中，错误的是（ ）。A.能够为用户提供带宽保证，实现流量工程B.可以利用NAT技术解决IP地址资源不足的问题C.可以利用SNMP实现带外网络管理D.保证QoS的主要技术有RSVP、DiffServ和MSTP
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下列关于宽带城域网技术的描述中，错误的是______。A．宽带城域网保证QoS的主要技术有RSVP、Diffserv，与MPLSB．宽带城域网带内网络管理是指利用网络管理协议(SNMP)建立网络管理系统C．宽带城域网能够为用户提供带宽保证，实现流量工程D．宽带城域网可以利用NAT技术解决IP地址资源不足的问题
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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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Which three statements are true about the application of QoS models？ （）A、 The DiffServ model requires applications to signal the network with QoS requirements.B、 The DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses.C、 The DiffServ model requires RSVP.D、 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 requirements.F、 The IntServ model attempts to deliver a level of service based on the QoS specified by each packet
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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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Which two statements about the DiffServ QoS model are true？（）A、DiffServ requires RSVP to set up a path through the network to accommodate the requested QoS.B、Network traffic is identified by class， and the level of service is chosen for each class.C、The DiffServ model relies on a fairly simple mechanism to provide QoS over a wide range of equipment.D、RSVP enables the DiffServ model to provide end-to-end QoS.E、The DiffServ model is more scalable than the IntServ model.F、The flow-based approach of the DiffServ model is ideal for large scalable implementations such as the public Internet.
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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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下列关于宽带城域网技术的描述中，错误的是（）A、宽带城域网保证QoS的主要技术有RSVP、DiffServ和MPLSB、宽带城域网带内网络管理是指利用网络管理协议SNMP建立网络管理系统C、宽带城域网能够为用户提供带宽保证，实现流量工程D、宽带城域网可以利用NAT技术解决IP地址资源不足的问题
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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
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单选题下列关于宽带城域网技术的描述中，错误的是（ ）。A
能够为用户提供带宽保证，实现流量工程B
可以利用NAT技术解决IP地址资源不足的问题C
可以利用SNMP实现网络管理D
保证QoS的主要技术有RSVP、DiffServ、MSTP
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