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在MP-BGP的更新中，包含下列哪些信息（）。
- A、VPNv4 prefix，RT，MPLSVPN label以及所有强制的BGP属性
- B、VPNv4 prefix，MPLSVPN label
- C、VPNv4 prefix，RT以及所有强制的BGP属性
- D、VPNv4 prefix，全局BGP prefix以及所有强制的BGP属性
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更多 “在MP-BGP的更新中，包含下列哪些信息（）。A、VPNv4 prefix，RT，MPLSVPN label以及所有强制的BGP属性B、VPNv4 prefix，MPLSVPN labelC、VPNv4 prefix，RT以及所有强制的BGP属性D、VPNv4 prefix，全局BGP prefix以及所有强制的BGP属性” 相关考题
考题
Which of the following three BGP filtering methods enabled with the neighbor command will filter BGP prefixes based on the prefix and prefix length?()
A. A neighbor distribute - list out command, referencing a standard ACLB. A neighbor prefix - list out commandC. A neighbor filter - list out commandD. A neighbor distribute - list out command, referencing an extended ACLE. A neighbor route - map out command
考题
Which one of the following statements about BGP is FALSE?()
A. BGP uses TCP port 179.B. BGP ensures reliability of updates by using the reliable transport services of TCP.C. The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.D. A TCP connection is required before exchanging updates.E. BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.
考题
PE之间建立MP-BGP邻居时，下列说法正确的是（）。A、PE之间需要建立OSPF邻居关系B、需要进入BGP的VPNv4地址族视图，使能MP-BGP邻居关系C、PE之间需要采用loopback接口地址建立BGP邻居关系
考题
VPNV4是一个进入MP-BGP的路由条目，是唯一可以被MP-BGPASN：NN和IP地址组成，下面哪个例子是VPNV4？（）A、VPNV4=2：1：192.168.1.0/24B、VPNV4=2：1C、VPNV4=192.168.1.0：2：1D、VPNV4=2：1：192.168.1.0
考题
使用以下哪个命令可以查看PE上是否有VPN用户路由信息（）。A、display iprouting-tableB、display iprouting-table vpn-instance vpnaC、display bgp vpnv4 all routingD、display bgp vpnv4 all routing vpn-instance vpna
考题
Which BGP community is used to prevent the advertisement of the BGP prefix to other BGP peers？（）A、additiveB、noneC、no-exportD、no-advertiseE、local-as
考题
Which of the following three BGP filtering methods enabled with the neighbor command will filter BGP prefixes based on the prefix and prefix length？（）A、A neighbor distribute - list out command, referencing a standard ACLB、A neighbor prefix - list out commandC、A neighbor filter - list out commandD、A neighbor distribute - list out command, referencing an extended ACLE、A neighbor route - map out command
考题
Which one of the following statements about BGP is FALSE?（）A、BGP uses TCP port 179.B、BGP ensures reliability of updates by using the reliable transport services of TCP.C、The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.D、A TCP connection is required before exchanging updates.E、BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.
考题
如何查看两台PE设备之间的MP-BGP邻居是否已经建立成功（）。A、displa bgp vpnv4 all peerB、displa bgp vpnv4 peerC、displa mp-bgp peer
考题
如何查看PE设备学习到BGP私网路由（）。A、displa bgp routing-tableB、displa bgp vpnv4 routing-tableC、displa mp-bgp routing-tableD、displa bgp vpnv4 all routing-table
考题
MP-BGP协议相对于BGP协议的改动包括（）。A、新增MP REACH NLRI属性B、新增MP UNREACH NLRI属性C、新增Extended Communities属性D、新增VPNv4地址族
考题
下列关于MPLS-VPN的描述中，哪些说法是错误的（）A、RD属性是利用BGP的MP_UNREACH_NLRI扩展属性，将每个VPN出口的路由由IPV4路由变成VPNV4路由B、MPLS私网标签是由PE的BGP协议进行分发的，它对每一条的VPNV4路由分发一个随机的私网标签，一一对应，不许重复C、MPLS私网标签是由PE针对VPNV4路由所分发的，且VPNV4路由是由RD+IPV4路由所组成的，也就是说不同的私网标签其本质是RD的不同D、MPLS-VPN的RT属性是使用BGP-4的Extended_Communities属性，它在BGP邻居建立时，已经作为协商属性之一，向所有邻居进行了宣告
考题
MPLS BGP VPN OSPF超级Backbone实现中，MP-BGP传递VPNv4路由信息时携带以下哪些BGP扩展属性（）。A、OSPF Domain Identifier Extended CommunityB、OSPF RouteType Extended CommunityC、OSPF Router ID Extended CommunityD、Route DistinguisherE、Route Target
考题
Which two options does Cisco PfR use to control the entrance link selection with inbound optimization？（）A、Prepend extra AS hops to the BGP prefix.B、Advertise more specific BGP prefixes（longer mask）.C、Add（prepend）one or more communities to the prefix that is advertised by BGP.D、Have BGP dampen the prefix.
考题
Which two statements about Layer 3 MPLS VPN are true？（）A、The virtual routing and forwarding table is separate from the global routing table that exists on PE routers. Routes are injected into the VRF from the CE-PE routing protocols for that VRF and any MP-BGP announcements that match the defined VRF RTsB、Multiprotocol Border Gateway Protocol is run between PE and CE routers to exchange customer prefixes in a VPNv4 formatC、A customer edge router peers at Layer 3 to the provider edge. The PE-CE interface runs either a dynamic routing protocol （eBGP， RIPv2， EIGRP， OSPF） or a static routing protocol （Static， Connected）D、VPNv4 address is the combination of the RT and customer IPv4 prefix. These VPNv4 prefixes are passed in MP-BGP
考题
What action will a BGP route reflector take when it receives a prefix marked with the community attribute NO ADVERTISE from a client peer？（）A、It will advertise the prefix to all other client peers and non-client peers.B、It will not advertise the prefix to EBGP peers.C、It will only advertise the prefix to all other IBGP peers.D、It will not advertise the prefix to any peers.
考题
A problem was reported that the 10.10.10.0/24 prefix was not injected into the local BGP table ona Company router named R1. The following information is available from this router： R1 Configuration： router bgp 65001 network 10.0.0.0 neighbor 172.16.1.1 remote-as 65002 no auto-summary Routing table information： show ip route | include 10 O 10.10.10.0/24 [110/11] via 192.168.1.1， 2d00h， Ethernet0/0 Why is this prefix not in the local BGP table of the R1？（）A、The 172.16.1.1 neighbor is down.B、The prefix 10.10.10.0/24 is not a ’connected’ routeC、This route is not a BGP learned routeD、The network command is wrongE、None of the other alternatives apply
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Which BGP community is used to prevent the advertisement of the BGP prefix to other BGP peers？（）A
additiveB
noneC
no-exportD
no-advertiseE
local-as
考题
单选题What action will a BGP route reflector take when it receives a prefix marked with the community attribute NO ADVERTISE from a client peer？（）A
It will advertise the prefix to all other client peers and non-client peers.B
It will not advertise the prefix to EBGP peers.C
It will only advertise the prefix to all other IBGP peers.D
It will not advertise the prefix to any peers.
考题
多选题Which two statements about Layer 3 MPLS VPN are true？（）AThe virtual routing and forwarding table is separate from the global routing table that exists on PE routers. Routes are injected into the VRF from the CE-PE routing protocols for that VRF and any MP-BGP announcements that match the defined VRF RTsBMultiprotocol Border Gateway Protocol is run between PE and CE routers to exchange customer prefixes in a VPNv4 formatCA customer edge router peers at Layer 3 to the provider edge. The PE-CE interface runs either a dynamic routing protocol （eBGP， RIPv2， EIGRP， OSPF） or a static routing protocol （Static， Connected）DVPNv4 address is the combination of the RT and customer IPv4 prefix. These VPNv4 prefixes are passed in MP-BGP
考题
多选题MPLS BGP VPN OSPF超级Backbone实现中，MP-BGP传递VPNv4路由信息时携带以下哪些BGP扩展属性（）。AOSPF Domain Identifier Extended CommunityBOSPF RouteType Extended CommunityCOSPF Router ID Extended CommunityDRoute DistinguisherERoute Target
考题
多选题Which two options does Cisco PfR use to control the entrance link selection with inbound optimization？（）APrepend extra AS hops to the BGP prefix.BAdvertise more specific BGP prefixes （longer mask）.CAdd （prepend） one or more communities to the prefix that is advertised by BGP.DHave BGP dampen the prefix.
考题
多选题Which of the following three BGP filtering methods enabled with the neighbor command will filter BGP prefixes based on the prefix and prefix length？（）AA neighbor distribute - list out command, referencing a standard ACLBA neighbor prefix - list out commandCA neighbor filter - list out commandDA neighbor distribute - list out command, referencing an extended ACLEA neighbor route - map out command
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