A number of transition techniques have emerged in the process of replacing a P4 address used in a network with a Pv6 address. These technologies are divided into two categories, one is PV4/IPv6 coexistence technology and the other is v4/P6 interworking technology. Which of the following options belong to Pv4/IP6 coexistence technology? (Multiple Choice)

• A.NAT64
• B.IPv6 over IPv4
• C.ISATAP
• D.Dual-Stack

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Router-LSA of OSPFv3 is generated by each router. It describes the interface address and cost of each link of the router, and also contains the router ID of the neighboring router.

• A.False
• B.True

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IS-IS supports the process and calculation of IPv6 routes by adding new TLV carrying IPv6 addresses and reachability information.

• A.TURE
• B.FALSE

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What are the benefits of OSPF area division? (Multiple choice)

• A.A large number of LSA flooding is restricted to a single area
• B.It can reduce the size of LSDB and thus reduce the consumption of router memory
• C.Routers in an area can understand the topology details outside their area
• D.LSA can also be reduced with the division of areas, reducing the consumption of router CPU

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What is the Router-ID of OSPFv3?

• A.32-bit value
• B.128-bit value
• C.100-bit value
• D.64-bit value

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