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多选题
（）是NS（GB.Network Service Layer）的功能.
A
LLC.PDU的传输
B
对NSE中多个NS-VCs的上下链路的共享
C
对NS-VC的管理
D
传输BSSGPPDU
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()是NS(GB Network Service Layer)的功能 .A.LLC PDU 的传输B.对NSE中多个NS-VCs 的上下链路的共享C.对NS-VC的管理D.传输BSSGP PDU
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How is network layer addressing accomplished in the OSI protocol suite?()
A. Internet Protocol addressB. Media Access Control addressC. Packet Layer Proto col addressD. Network Service Access Point addressE. Authority and Format Identifier address
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Which two statements correctly describe a situation in which an Active／Standby Service Module design is being used?()
A. Troubleshooting is more complicated.B. Service and switch modules are underutilized.C. Layer 2 adjacency is required with the servers that use this design.D. Layer 3 adjacency is required with the servers that use this design.E. Load balancing will always occur across both access layer uplinks.
考题
Which two of these are characteristics of MPLS VPNs?()
A. Layer 3 MPLS VPNs can forward only IP packetsB. Layer 2 MPLS VPNs can forward any network protocolC. MPLS label paths are automatically formed based on Layer 2 framesD. Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE. In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
考题
WhenyoudesignQoSonCEforanMPLSLayer2VPN,whichthreethingsshouldbeconsidered?()
A.Layer2accesslinkQoSdesignB.enterprise-to-service-providermappingmodelsC.Layer3linkaccessQoSdesignD.serviceproviderservicelevelagreementsE.Layer2linkaccessloadbalancing
考题
Together with the network layer,the transport layer is the heart of the protocol ( 请作答此空).The network layer provides end-to-end () delivery using datagrams or virtual circuits.The transport layer builds on the network layer to provide data transport from a process on a () machine to a process on a destination machine with a desired level of reliability that is independent of the physical () currently in use.It provides the abstractions that applications nedd to use the network..Without the () layer,the whole concept of layered protocols would make little sense.A.transport
B.network
C.hierarchy
D.service
考题
某计算机的指令流水线由四个功能段组成，指令流经各功能段的实际(忽略功能段之间的缓存时间)分别是90ns，80ns，70ns，60ns，则该CPU时钟周期至少是()。A.60ns
B.70ns
C.80ns
D.90ns
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When you design QoS on CE for an MPLS Layer 2 VPN， which three things should be considered？（）A、Layer 2 access link QoS designB、enterprise-to-service-provider mapping modelsC、Layer 3 link access QoS designD、service provider service level agreementsE、Layer 2 link access load balancing
考题
Which technology is an example of the need for a designer to clearly define features and designedperformance when designing advanced WAN services with a service provider？（）A、 FHRP to remote branches.B、 Layer 3 MPLS VPNs routing.C、 Control protocols （for example Spanning Tree Protocol） for a Layer 3 MPLS service.D、 Intrusion prevention， QoS， and stateful firewall support network wide.
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How does the Ethernet Relay Service use the VLAN tag？（）A、 to provide service internetworkingB、 to support transparency for Layer 2 framesC、 as a connection identifier to indicate destinationD、 as a mapping to the DLCI in service internetworkingE、 to provide a trunk by which all VLANs can navigate from one site to one or multiple sites
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Which two statements about the Adaptive Services PIC are true? （）A、The Adaptive Services PIC supports the Layer 3 service package by default.B、The Adaptive Services PIC is required when using the secure shell to access an M-series router.C、The Adaptive Services PIC can be configured for the Layer 2 and Layer 3 service packages simultaneously.D、The Adaptive Services PIC can be configured for either the Layer 2 or the Layer 3 service package but not both at the same time.
考题
（）是NS（GB.Network Service Layer）的功能.A、LLC.PDU的传输B、对NSE中多个NS-VCs的上下链路的共享C、对NS-VC的管理D、传输BSSGPPDU
考题
How is network layer addressing accomplished in the OSI protocol suite?（）A、Internet Protocol addressB、Media Access Control addressC、Packet Layer Proto col addressD、Network Service Access Point addressE、Authority and Format Identifier address
考题
Which two of these are characteristics of MPLS VPNs？ （）A、 Layer 3 MPLS VPNs can forward only IP packetsB、 Layer 2 MPLS VPNs can forward any network protocolC、 MPL S label paths are automatically formed based on Layer 2 framesD、 Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE、 In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policies
考题
Which two statements correctly describe a situation in which an Active/Standby Service Module design is being used?（）A、Troubleshooting is more complicated.B、Service and switch modules are underutilized.C、Layer 2 adjacency is required with the servers that use this design.D、Layer 3 adjacency is required with the servers that use this design.E、Load balancing will always occur across both access layer uplinks.
考题
Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintaineD.To fix this issue, at which layer should the troubleshooting process begin?（）A、presentationB、sessionC、transportD、networkE、physical
考题
多选题Which two statements about the Adaptive Services PIC are true? （）AThe Adaptive Services PIC supports the Layer 3 service package by default.BThe Adaptive Services PIC is required when using the secure shell to access an M-series router.CThe Adaptive Services PIC can be configured for the Layer 2 and Layer 3 service packages simultaneously.DThe Adaptive Services PIC can be configured for either the Layer 2 or the Layer 3 service package but not both at the same time.
考题
多选题Which two of these are characteristics of MPLS VPNs?（）ALayer 3 MPLS VPNs can forward only IP packetsBLayer 2 MPLS VPNs can forward any network protocolCMPLS label paths are automatically formed based on Layer 2 framesDLayer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesEIn Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
考题
单选题How does the Ethernet Relay Service use the VLAN tag？（）A
to provide service internetworkingB
to support transparency for Layer 2 framesC
as a connection identifier to indicate destinationD
as a mapping to the DLCI in service internetworkingE
to provide a trunk by which all VLANs can navigate from one site to one or multiple sites
考题
单选题Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?（）A
presentationB
sessionC
transportD
networkE
physical
考题
单选题Which technology is an example of the need for a designer to clearly define features and designedperformance when designing advanced WAN services with a service provider？（）A
FHRP to remote branches.B
Layer 3 MPLS VPNs routing.C
Control protocols （for example Spanning Tree Protocol） for a Layer 3 MPLS service.D
Intrusion prevention， QoS， and stateful firewall support network wide.
考题
单选题How is network layer addressing accomplished in the OSI protocol suite?（）A
Internet Protocol addressB
Media Access Control addressC
Packet Layer Proto col addressD
Network Service Access Point addressE
Authority and Format Identifier address
考题
问答题什么是NS2？NS2能实现哪些功能？
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