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单选题
CE/PE采用双RD设计，同一对PE的同一个VPN，分配（）的RD。
A
不同
B
相同
C
相反
D
统一
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客户CE至PE、网间Option－A互联双接入方式下,客户有快速路由收敛需求时,应分配()以实现一条接入电路故障时客户VPN路由的快速收敛。
A.唯一的RDB.两个连续的RDC.多个不连续的RD
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一个三层MPLS-VPN组网中，同一个站点CE双连接到不同的PE路由器上，为同一个站点分配两个不同的RD的出发点是（）A、以便于实现负载均衡B、以便于实现快速收敛C、以便于防止路由震荡D、以便于防止路由环
考题
When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers. Refer to the following descriptions, which one is making sense?（）A、If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistributionB、If using IS-IS as the PE-CE routing protocol, no redistribution is requiredC、If using static routes between the CE and PE routers, no redistribution of other VPN routes is requiredD、If PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required
考题
PE1 has connections to VPN sites that are served by three remote PE routers. How many LSP’s must be established to support 2547bis？（）A、an LSP for each local CE deviceB、an LSP for each remote PE deviceC、an LSP for each remote CE deviceD、an LSP for each CE facing interface
考题
在PE上见擦某VPN的私网路由表，发现可以通过MP-BGP路由协议学习到对端VPN用户的私网路由，而此时检查该PE下连CE设备路由表，却发现无法学习到该私网路由，可能是下面的哪些原因（）。A、PE与CE之间的路由协议异常，不能正常交互路由信息B、PE之间的MP-BGP邻居建立异常C、PE与此CE互联的接口未与该VPN进行绑定
考题
PE与CE之间运行的路由协议，有下列哪些特殊要求（）。A、PE和CE之间必须运行动态路由协议，不能配置静态路由B、PE和CE之间运行的路由协议在PE上需要与对应的VPN进行绑定C、PE和CE之间如果运行OSPF路由协议，要求在PE上的OSPF进程号与CE上的OSPF进程号必须部署成相同D、PE和CE之间不能选择运行IBGP路由协议
考题
RD即 Route Distinguisher，关于它的描述正确的是（）。A、同一台PE上不同的VPN的RD不能配置相同B、不同PE设备上相同的VPN的RD必须配置相同，否则它们将无法互通C、不同PE设备上不同的VPN的RD可以配置相同，原理上不存在冲突
考题
RT与RD的关系描述错误的是（）。A、同一VPN的RT值必须与RD值相同B、RD值是其所属VPN的RT属性的Import Target属性或Export Target属性列表中的一个C、同一台设备上不同VPN的RD值和RT属性值都不能配置成相同
考题
BGP MPLS VPN组网中，RD前缀将存在于下列哪个位置（）。A、PE转发给P设备的私网报文中B、PE之间交互的路由更新消息中C、PE之间交互的路由撤销消息中D、PE转发给CE的私网报文中
考题
客户CE至PE、网间Option-A互联双接入方式下，客户有快速路由收敛需求时，应分配（）以实现一条接入电路故障时客户VPN路由的快速收敛。A、唯一的RDB、两个连续的RDC、多个不连续的RD
考题
When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? （）A、If using IS-IS as the PE-CE routing protocol, no redistribution is required.B、If using static routes between the CE and PE routers, no redistribution of other VPN routes is required.C、If the PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required.D、If RIP is the routing protocol that is used between the PE-CE routers, no redistribution is required, but any other protocol will require redistribution.E、If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistribution.
考题
MPLS BGP VPN中，PE和CE之间运行BGP路由协议，PE与CE相连接的接口与VPN-instance vpna绑定，使用下面哪个命令可以检查PE和CE正确建立了EBGP邻居关系（）。A、display bgp vpnv4 vpn-instance vpna peerB、display bgp peerC、display ip vpn-instance vpnaD、display bgp vpnv4 vpn-instance vpna network
考题
单选题When EIGRP is used as the PE-CE routing protocol which of these statements is correct?（）A
EIGRP can be used only as the PE-CE routing protocol if the PE and CE routers are in the same ASB
Other EIGRP AS routes are automatically advertised to the CE router and do not require a redistribution configuration command to be configuredC
Unlike other routing protocols that are used between PE and CE routers, EIGRP supports backdoor linksD
Configure of the VPN is only required on the PE router
考题
多选题在MPLS VPN中，为了区分使用相同地址空间的1Pv4前缀，将1Pv4的地址增加了RD值，下列选项描述正确的是：（）ARD在传递过程中作为BGP的扩展属性封装在Update报文中。BPE从CE接收到IPV4路由后，给IPV4的路由增加RD转换为全局唯一的VPN-IPV4路由，并在公网上发布。C在PE设备上，每一个VPN实例都对应一个RD值，同一PE设备上，必须保证RD全局唯一。DRD可用来控制VPN路由信息的发布。
考题
单选题When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers. Refer to the following descriptions, which one is making sense?（）A
If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistributionB
If using IS-IS as the PE-CE routing protocol, no redistribution is requiredC
If using static routes between the CE and PE routers, no redistribution of other VPN routes is requiredD
If PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required
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