As shown in the figure, OSPF is enabled on all interfaces of the router. Which of the following statements is correct?

• A.R2in the area0generated inType5 LSAcontains10.0.2.2/32routing information
• B.R2in the area0generated inType2 LSAcontains10.0.2.2/24routing information
• C.R2in the area0generated inTypel LSAcontains10.0.2.2/32routing information
• D.R2in the area0generated inType3 LSAcontains10.0.2.2/32routing information

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Part of the configuration of R1 is as follows. Which of the following statement about IS-IS on R1 is correct? (Multiple choice)

• A.Process 1 also contains global routing information. And VRF tt, rr routing information
• B.The routing information of process 2 and process 3 are isolated
• C.The routing information of process 2 and process 3 will be shared
• D.Process 1 only contains global routing information

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Regarding BGP/MPLS IPVPN data forwarding, which of the following descriptions is wrong?

• A.When data is transmitted on the BCP/MPLS IPVPN backbone network, it always carries two layers of labels
• B.The data sent by the PE to the CE is an IPv4 packet
• C.The inner label during data forwarding is assigned by MP-BGP
• D.The outer label during data forwarding can be allocated by LDP

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A campus deploys OSPF to implement network interworking. The LSDB of R2 is shown in the figure. From this LSDB. it is possible to What information was obtained?

• A.Area 1forNSSAarea
• B.ArealNone inType3 LSA. maybeR2in the area1In the correct directiontype3 LSAfiltered
• C.R2existOSPFThe default route is delivered in the process
• D.R2WillType7 LSAThe default route is converted toType5 LSAdefault route for

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What is the value of the linkage between OSPF and BFD?

• A.OSPFofhelloThe sending interval is in seconds, more thanBFDInduction link status is fast
• B.BFDThe message sending interval can reach the millisecond level, which is less thanOSPFInduction link status is slow
• C.BFDAny change in state will not affectOSPFneighbor state
• D.Detected at the millisecond levelBFD. associationOSPFstate, fulfilledOSPFThe purpose of quickly sensing the status of the tank

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