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城域骨干网部署基于DiffServ为主的3层QoS策略，通过IP Precedence或EXP标记接入（）。
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考题
在部署Qos的时候,可以使用PBR来进行流量分类和标记,可以依据ACL定义的规则(源ip地址.目的IP地址.协议类型.端口号等)和数据包的长度范围进行分类,然后修改数据包的DSCP或IP Precedence字段进行标记。
A．错误B．正确
考题
根据《中国电信IP城域骨干网组网与策略规范(2010版)》,城域接入网是城域骨干网、()以下、用户CPE以上(不含CPE)的二层接入网络,层次上划分为汇聚层和接入层,提供多种接入方式。
A.业务接入控制点B.汇聚交换机C.SRD.BRAS
考题
根据《中国电信IP城域骨干网组网与策略规范(2010版)》,拨号接入业务采用动态IP地址分配方式,用户通过xDSL、:()、WLAN或LAN等方式经过汇聚接入到BRAS进行业务接入控制,由BRAS实现拨号接入网关功能。
A.EPONB.IPRANC.POND.ISDN
考题
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
根据《中国电信IP城域骨干网组网与策略规范（2010版）》，城域接入网是城域骨干网、（）以下、用户CPE以上（不含CPE）的二层接入网络，层次上划分为汇聚层和接入层，提供多种接入方式。A、业务接入控制点B、汇聚交换机C、SRD、BRAS
考题
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
考题
DSCP value "101110" looks like which IP Precedence value to non-DiffServ compliant devices？（）A、IP Precedence 2B、IP Precedence 3C、IP Precedence 4D、IP Precedence 5E、IP Precedence 6F、IP Precedence 7
考题
以下关于IP城域网与数据承载网关系的说法，哪个最准确（）A、两者为并列关系，均可独立承载用户的数据业务B、IP城域网就是CMNET的接入层C、IP城域网就是IP专用承载网和CMNET骨干网在本地网（城域范围）的延伸D、IP城域网就是IP专用承载网的接入层
考题
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
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
考题
多选题Which three statements are true about the application of QoS models？ （）AThe DiffServ model requires applications to signal the network with QoS requirements.BThe DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses.CThe DiffServ model requires RSVP.DThe best effort model is suitable for applications such as file transfer and e-mailEThe IntServ model requires applications to signal the network with QoS requirements.FThe IntServ model attempts to deliver a level of service based on the QoS specified by each packet
考题
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
单选题下面对DiffServ模型的描述，不正确的是（）A
可以通过设置IP报文头部的QoS参数信息，来告知网络节点它的QoS需求B
报文传播路径上的各个设备，都可以通过IP报文头的分析来获知报文的服务需求类别C
在实施DiffServ时，下游路由器必须要对报文进行分类D
DiffServ是一种基于报文流的QoS解决方案
考题
单选题DSCP value "101110" looks like which IP Precedence value to non-DiffServ compliant devices？（）A
IP Precedence 2B
IP Precedence 3C
IP Precedence 4D
IP Precedence 5E
IP Precedence 6F
IP Precedence 7
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