A company consists of a head office and two branches, and uses MPLS VPN technology to deliver private network routes. In the networking mode of HuB & Spoke. Branches can only send and receive routing with the head office, and branches cannot directly send and receive routing with each other. In order to achieve the above requirements, which of the following options can be set for RT? (Multiple choice)

• A.Head Office: Import Target: 2:2; Export Target: 3:3. Branch 1: Import Target: 3:3; Export Target: 1:1. Branch 2: Import Target: 3:3; Export Target.2:2
• B.Headquarters: Import Target 1:1, 2:2; Export Target: 3:3. Branch 1: Import Target: 3:3; Export Target: 1:1. Branch 2: Import Target: 3:3; Export Target: 2:2
• C.Headquarters: Import Target: 1:1; Export Target: 3:3. Branch 1: Import Target: 3:3; Export Target: 1:1. Branch 2: Import Target: 3:3; Export Target: 2:2
• D.Headquarters: Import Target 12:3; Export Target: 3:12. Branch 1: Import Target: 3:12; Export Target 12:3. Branch 2: Import Target: 3:12: Export Target: 12:3

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A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFv3 to implement IPv6 network interconnection. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Which of the following statements is true about the description of this LSA?

• A.The SA shows 2 does not support external routing, but participates in IPv6 routing calculation
• B.The router that generates this LSA is R2 port R2 connected
• C.IPv6 address prefix for GEO/0/0: 2001:DB8:2345:23::/64
• D.The link-local address of R2 interface GEO/0/0 is: FE80::2E0:FCFF:FEC, D:4F79

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In an MPLS domain, LSR can be divided into Ingress LSR, Transit LSR and Egress LSR according to the way the LSR processes data. For the same FEC, a certain LSR can be the Ingress LSR of the FEC or the Transit LSR of the FEC.

• A.TRUE
• B.FALSE

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In an MPLS VPN network, data packets are forwarded when they enter the public network. will be encapsulated with two layers of MPLS labels sign. Which of the following options describes the processing of the packet correctly:

• A.The data packet is forwarded toEgress PEequipment
• B.Egress PEThe device correctly sends the data packet to the correspondingVPNmiddle
• C.the outer label of the packet received by the penultimate hop device is3
• D.Egress PEDevice received untaggedIPdata pack

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According to this diagram, can we break the

• A.R4belong only toLevel-1
• B.R4dry onlyLevel2
• C.system-IDforee8c.a0c2.baf2The device' whose type isLevel-1
• D.system-IDforee8c.a0c2.baf2device whose type isLevel-1-2

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