单选题Which VPN router does not contain customer routing knowledge?（）AProvider Core (P)BProvider Edge (PE)CCustomer Edge (CE)DCustomer Boundary (CB)
单选题
Which VPN router does not contain customer routing knowledge?（）
A
Provider Core (P)
B
Provider Edge (PE)
C
Customer Edge (CE)
D
Customer Boundary (CB)
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解析：
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Which VPN router does not contain customer routing knowledge?() A. Provider Core (P)B. Provider Edge (PE)C. Customer Edge (CE)D. Customer Boundary (CB)
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Which four statements about the Carrier Supporting Carrier （CSC） feature are true？ （）A、MPLS is required between the PE and CE routers that connect the backbone carrier to the customer carrier.B、The backbone carrier must enable the PE router to check that the packets it receives from the CErouter contain only the labels that the PE router advertised to the CE router.C、Every packet that crosses the backbone carrier must be encapsulated so that the packet includes MPLS labelsD、AII PE routers that link the backbone carrier to the customer carrier must run Route Target Rewrite.E、Arouting protocol is required between the PE and CE routers that connect the backbone carrierto thecustomer carrier. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.
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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
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In a bridged 1483 network,which configuration command allows the ERX Edge Router to advertise customer networks into the provider's IGP?（）A、redistribute directB、redistribute staticC、redistribute connectedD、redistribute access-internal
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多选题Which four statements about the Carrier Supporting Carrier （CSC） feature are true？ （）AMPLS is required between the PE and CE routers that connect the backbone carrier to the customer carrier.BThe backbone carrier must enable the PE router to check that the packets it receives from the CErouter contain only the labels that the PE router advertised to the CE router.CEvery packet that crosses the backbone carrier must be encapsulated so that the packet includes MPLS labelsDAII PE routers that link the backbone carrier to the customer carrier must run Route Target Rewrite.EArouting protocol is required between the PE and CE routers that connect the backbone carrierto thecustomer carrier. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.
多选题If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）AA sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkBA sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedCA SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorDA SHAM link is part of OSPF network of MPLS-VPN provider
单选题Which configuration command allows the ERX Edge Router to advertise customer networks into the provider’s IGP？（）Aredistribute directBredistribute staticCredistribute connectedDredistribute access-internal
单选题In a bridged 1483 network， what configuration command allows the ERX Edge Router to advertise customer networks into the provider’s IGP？ （）Aredistribute directBredistribute staticCredistribute connectedDredistribute access-internal
单选题What configuration command allows the ERX Edge Router to advertise customer networks into the provider’s IGP？（）Aredistribute directBredistribute staticCredistribute connectedDredistribute access-internal
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
单选题What does the OSPF command capability vrf-lite achieve？（）AIt enables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFBIt disables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFCIt enables the exchange of the VRF-Lite capability when the OSPF adjacency is formed.DIt disables the MPLS processing on the OSPF learned routes inside the VRF
单选题In a bridged 1483 network,which configuration command allows the ERX Edge Router to advertise customer networks into the provider's IGP?（）Aredistribute directBredistribute staticCredistribute connectedDredistribute access-internal
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?（）AIf using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistributionBIf using IS-IS as the PE-CE routing protocol, no redistribution is requiredCIf using static routes between the CE and PE routers, no redistribution of other VPN routes is requiredDIf PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required