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WhichtwoimplementationsarestandardVirtualPrivateLANService(VPLS)implementationsthataresupportedbytheIETF?()
A.VPLSusesLDPforsignaling.
B.VPLSusesBGPforautodiscoveryandsignaling.
C.VPLSusesextendedIS-ISforsignaling
D.VPLSusesOSPFversion3forautodiscoveryandsignaling
E.VPLSusesspanningtreeforsignaling
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更多 “ WhichtwoimplementationsarestandardVirtualPrivateLANService(VPLS)implementationsthataresupportedbytheIETF?() A.VPLSusesLDPforsignaling.B.VPLSusesBGPforautodiscoveryandsignaling.C.VPLSusesextendedIS-ISforsignalingD.VPLSusesOSPFversion3forautodiscoveryandsignalingE.VPLSusesspanningtreeforsignaling ” 相关考题
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Which statement about VPLS is true？（）A、All CE devices emulate a bridgeB、All provider devices emulate a bridgeC、Hierarchical VPLS reduces signaling overheadD、Each PE device emulates a bridgeE、Each CE device emulates a bridge
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Which two implementations are standard Virtual Private LAN Service （VPLS） implementations that aresupported by the IETF？（）A、VPLS uses LDP for signaling.B、VPLS uses BGP for autodiscovery and signaling.C、VPLS uses extended IS-IS for signalingD、VPLS uses OSPF version 3 for auto discovery and signalingE、VPLS uses spanning tree for signaling
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PTN删除VPLS业务中某个支节点时，下面说法正确的是（）。A、第一步应当删除和该支节点关联的LSPB、第一步可在“调整VPLS”中调出VPLS创建界面，将涉及到该支节点的成员电路删除C、也可以先不删除成员电路而进入VPLS配置界面，先将该支节点以及关联的端口、仿真LAN和流删除D、在删除完成后，需要再次调出VPLS创建界面和配置界面，检查VPLS是否被打散
考题
svlan 1703配置到NT-A上联端口1口上的命令是A、configure service vpls 1703 sap nt-a:xfp:1:1703 no shutdownB、configure service vpls 1703 sap nt-a:xfp:1:1703C、configure service vpls 1703 sap nt-a:xfp:1:1703 admin-state upD、configure service vpls 1703 sap nt-a:xfp:1:1703 create
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Which two restrictions must the Enterprise Campus network designer consider when evaluatingWAN connectivity options？ （）A、 OSPF over multicast EMS or VPLS network may not have consistent broadcast or multicastperformanceB、 IP multicast is not supported over Lover 3 MPLS VPN； instead a Layer 2 MPLS WN must beutilized with service provider supportC、 QoS requirements with MPLS-VPN must be implemented by the service providerD、 Hierarchical VPLS designs are the least scalableE、 IGMP snooping is not on option with VPLS or EMS； instead administrative scoping or allowingsufficient bandwidth for unnecessary multicast traffic at the edge links is required
考题
Which of these statements best describes VPLS?（）A、Neither broadcast nor multicast traffic is ever flooded in VPLS.B、Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.C、VPLS emulates an Ethernet switch, with eachEMS being analogous to a VLAN.D、Because U-PE devices act as IEEE 802.1 devices, the VPLS core must use STP.E、When the provider experiences an outage, IP re-routing restores PW connectivity and MAC relearning is needed.
考题
With VPLS， which protocol is used for label exchange and PW signalling？（）A、MP-BGPB、LDPC、Directed LDPD、MTPE、BGPF、IGP
考题
PWE3业务和VPLS业务的区别不包括（）A、VPLS业务数据转发需要查询MAC地址转发表，PWE3业务转发不需要查询MAC地址转发表B、创建VPLS业务时，所有业务接入接口的VLAN可以配置成一样，但PWE3的两个业务接口需要配置不同的VLANC、VPLS业务如果配置不当，会有环路风险，PWE3业务不会导致环路D、PWE3提供点到点的业务模型，VPLS提供点到多点业务模型
考题
Which of these statements best describes VPLS？（）A、 Neither broadcast nor multicast traffic is ever flooded in VPLS.B、 Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.C、 VPLS emulates an Ethernet switch， with each EMS being analogous to a VLAN.D、 Because U-PE devices act as IEEE 802.1 devices， the VPLS core must use STP.E、 When the provider experiences an outage， IP re-routing restores PW connectivity and MAC re-learning is needed.
考题
单选题PWE3业务和VPLS业务的区别不包括（）A
VPLS业务数据转发需要查询MAC地址转发表，PWE3业务转发不需要查询MAC地址转发表B
创建VPLS业务时，所有业务接入接口的VLAN可以配置成一样，但PWE3的两个业务接口需要配置不同的VLANC
VPLS业务如果配置不当，会有环路风险，PWE3业务不会导致环路D
PWE3提供点到点的业务模型，VPLS提供点到多点业务模型
考题
单选题Which statement about VPLS is true？（）A
All CE devices emulate a bridgeB
All provider devices emulate a bridgeC
Hierarchical VPLS reduces signaling overheadD
Each PE device emulates a bridgeE
Each CE device emulates a bridge
考题
单选题Which of these statements best describes VPLS?（）A
Neither broadcast nor multicast traffic is ever flooded in VPLS.B
Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.C
VPLS emulates an Ethernet switch, with eachEMS being analogous to a VLAN.D
Because U-PE devices act as IEEE 802.1 devices, the VPLS core must use STP.E
When the provider experiences an outage, IP re-routing restores PW connectivity and MAC relearning is needed.
考题
多选题Which two signaling protocols could be used in VPLS to advertise site information between PEs? （）AIKEBBGPCRSVPDLDP
考题
单选题What is the primary purpose of VPLS?（）A
to create a partial mesh of VPN sitesB
to remove MPLS from VPNsC
to create a point to multipoint topologyD
to enable IPsec accross the VPN
考题
单选题Which statement about the use of Route Target Rewrite is true？（）A
It is mainly used in Intra-AS MPLS VPLS deployments and is configured at the ASBR to avoid misconfiguration of the Route Target assignment for VPN configurationsB
It is mainly used in Inter-AS MPLS VPN deployments and is configured at the ASBR to avoid misconfiguration of the Route Target assignment for VPN configurationsC
It is mainly used in Intra-AS MPLS VPLS deployments and is configured at the Router Reflectorto avoid misconfiguration in Route Target assignment for VPN configurationsD
It is mainly used in Inter-AS MPLS VPLS deployments and is configured at the Router Reflectorto avoid misconfiguration of the Route Target assignment for VPN configurationsE
It is mainly used in Inter-AS MPLS VPLS deployments and is configured at the PE router to avoid to misconfiguration of the Route Target assignment for VPN configurations
考题
单选题What is the data encapsulation method for the VPLS virtual circuit （VC）？（）A
MAC over MPLSB
L2TPV3C
802.1 QinQD
Ethernet over MPLSE
GRE
考题
多选题Which two restrictions must the Enterprise Campus network designer consider when evaluatingWAN connectivity options？ （）AOSPF over multicast EMS or VPLS network may not have consistent broadcast or multicastperformanceBIP multicast is not supported over Lover 3 MPLS VPN； instead a Layer 2 MPLS WN must beutilized with service provider supportCQoS requirements with MPLS-VPN must be implemented by the service providerDHierarchical VPLS designs are the least scalableEIGMP snooping is not on option with VPLS or EMS； instead administrative scoping or allowingsufficient bandwidth for unnecessary multicast traffic at the edge links is required
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