PHB(per－Hop Behavior)是DS结点作用于数据流的行为,每个DS结点必须支持缺省PHB A．错误B．正确
PHB(per－Hop Behavior)是DS结点作用于数据流的行为,每个DS结点必须支持缺省PHB
A．错误
B．正确
相关考题：
IEEE802.11 定义的Ad Hoc网络是由无线移动结点组成的对等网，这种网络的特点是（ ）。在这种网络中使用的 DSDV（Destination-Sequenced Distance Vector）路由协议是一种（ ）。A.每个结点既是主机，又是交换机 B.每个结点既是主机，又是路由器 C.每个结点都必须通过中心结点才能互相通信 D.每个结点都发送IP广播包来与其他结点通信 A.洪泛式路由协议 B.随机式路由协议 C.链路状态路由协议 D.距离矢量路由协议
The diffserv approach to providing QoS in networks employs a small, well-defined set of building blocks from which you can build a variety of( ). Its aim is to define the differentiated services (DS) byte, the Type of Service (ToS) byte from the Internet Protocol Version 4 ( )and the Traffic Class byte from IP Version 6, and mark the standardized DS byte of the packet such that it receives a particular forwarding treatment, or per-hop behavior (PHB), at each network node. The diffserv architecture provides a( )within which service providers can offer customers a range of network services, each differentiated based on performance. A customer can choose the ( )level needed on a packet-by-packet basis by simply marking the packets Differentiated Services Code Point (DSCP) field to a specific value.This ( ) specifies the PHB given to the packet within the service provider network.A.servicesB.UsersC.networksD.structuresA.messageB.PacketC.headerD.packageA.informationB.StructureC.meansD.frameworkA.performanceB.SecureC.privacyD.dataA. packetB.valueC.serviceD.paragraph
关于DiffServ模型体系结构,正确的有() A.DS区域的服务提供策略由PHB决定B.不同DS区域可有不同的PHB以实现不同的服务提供策略C.所有DS区域的PHB必须相同，以保证服务提供策略连续D.在网络边缘进行业务分类和流量调整
The diffserv approach to providing QoS in networks employs a small,well-defined set of building blocks from which you can build a variety of( ).Its aim is to define the differentiated services(DS)byte,the Type of Service(ToS)byte from the Internet Protocol Version 4( )and the Traffic Class byte from IP Version 6,and mark the standardized DS byte of the packet such that it receives a particular forwarding treatment,or per- hop behavior(PHB),at each network node.The diffserv architecture provides a( )within which service providers can offer customers a range of network services,each differentiated based on performance.A customer can choose the(________ )level needed on a packet-by-packet basis by simply marking the packet's Differentiated Services Code Point(DSCP)field to a specific value.This ( ) specifies the PHB given to the packet within the service provider network。横线处应选（ ） A.performanceB. SecureC. privacyD.data
The diffserv approach to providing QoS in networks employs a small,well-defined set of building blocks from which you can build a variety of( ).Its aim is to define the differentiated services(DS)byte,the Type of Service(ToS)byte from the Internet Protocol Version 4(________)and the Traffic Class byte from IP Version 6,and mark the standardized DS byte of the packet such that it receives a particular forwarding treatment,or per- hop behavior(PHB),at each network node.The diffserv architecture provides a( )within which service providers can offer customers a range of network services,each differentiated based on performance.A customer can choose the( )level needed on a packet-by-packet basis by simply marking the packet's Differentiated Services Code Point(DSCP)field to a specific value.This ( ) specifies the PHB given to the packet within the service provider network。横线处应选（ ）(72)A message B. PacketC.header D. package A. messageB. PacketC.headerD.package
IEEE802.11 定义的 Ad Hoc 网络是由无线移动结点组成的对等网，这种网络的特点是（ ）A. 每个结点既是主机，又是交换机B. 每个结点既是主机，又是路由器C. 每个结点都必须通过中心结点才能互相通信D. 每个结点都发送 IP 广播包来与其他结点通信
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）
With the DSCP value fo "101110"， what does the "11" in bits 1 and 2 indicate ？（）A、AF ClassB、Drop ProbabilityC、CS（Class Selector Value ）D、PHB （Per-Hop Behavior ）E、IP PrecedenceF、Queue Depth
关于DiffServ模型体系结构，正确的有（）A、DS区域的服务提供策略由PHB决定B、不同DS区域可有不同的PHB以实现不同的服务提供策略C、所有DS区域的PHB必须相同，以保证服务提供策略连续D、在网络边缘进行业务分类和流量调整
多选题关于DiffServ模型体系结构，正确的有（）ADS区域的服务提供策略由PHB决定B不同DS区域可有不同的PHB以实现不同的服务提供策略C所有DS区域的PHB必须相同，以保证服务提供策略连续D在网络边缘进行业务分类和流量调整
单选题Which QoS model manages the QoS requirements for the network on a per-hop behavior （PHB） basis？（）Abest-effort deliveryBingress committed rate （ICR）Cshaping and policingDegress committed rate （ECR）EIntegrated Services （IntServ）Fdifferentiated services （DiffServ）
填空题在线性结构中，第一个结点（）前驱结点，其余每个结点有且只有1个前驱结点；最后一个结点（）后续结点，其余每个结点有且只有1个后续结点。