As shown in the figure, the cost value of the link that all interfaces of the router enable OSPF is identified in the figure. Loogback0 interfect of R2 is advertised in area 0. In area 1, both R2 and R3 will be transmitted in the form of Typae3 LSA 10.0.2.2/32 routing information.

• A.FALSE
• B.TRUE

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If you are faced with a complex network failure, and after evaluation, it is considered that the troubleshooting cannot be completed in a short time, and at this time the user urgently needs to restore the availability of the network, then which is the correct approach?

• A.Tell users that this is impossible
• B.Always try to troubleshoot, and do not inform users of the current difficulty of troubleshooting
• C.Communicate with users whether it is possible to skip the faulty node and build an alternative network environment
• D.Directly build an alternative network environment without notifying the customer

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In BGP/MPLS IP VPN, the OSPF multi-instance process uses the DN bit to prevent Type5 LSA loops.

• A.FALSE
• B.TRUE

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A park deployed IPv6 for business testing. There are 4 routers (R1, 22, R3 and R4) in this network, running OSPFv3 to realize the interconnection of IPv6 network. There is a new router R5 that needs to be connected to the network for testing. An engineer introduced a direct route in the OSPFvV3 process of R4 to realize that the devices in the campus network can access the GE0/0/1 port address of R5. Which of the following descriptions of the scene are correct? (Multiple choice)

• A.R4 will generate an IPv6 routing prefix introduced by Type5 LSA description
• B.R2 will generate a Type4 LSA describing the Router ID of R4
• C.R2 will generate a Type4 LSA and only flood in Area 0
• D.R4 will generate a Type5 LSA and only flood in Area 1

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

• A.The Type3 LSA generated by R2 in area 0 contains 10.0.2.2/32 routing information
• B.The Type5 LSA generated by R2 in area 0 contains 10.0.2.2/32 routing information
• C.The Type1 LSA generated by R2 in area 0 contains 10.0.2.2/32 routing information
• D.The Type2 LSA generated by R2 in area 0 contains 10.0.2.2/24 routing information

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