IPv6 and Routing Protocols: Exam 200-125 Cisco Certified Network Associate Exam

IPv6 and Routing Protocols

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Question

Which two statements about IPv6 and routing protocols are true? (Choose two.)

Answers

Explanations

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A. B. C. D. E.

BE

The correct answers are B. OSPFv3 was developed to support IPv6 routing and E. Link-local addresses are used to form routing adjacencies.

Explanation:

A. EIGRPv3 was developed to support IPv6 routing. - This statement is false. Cisco developed EIGRPv6 to support IPv6 routing, not EIGRPv3.

B. OSPFv3 was developed to support IPv6 routing. - This statement is true. OSPFv3 was developed to support IPv6 routing. OSPFv3 uses the IPv6 address family and supports IPv6 prefixes, router IDs, and link-local addresses.

C. Loopback addresses are used to form routing adjacencies. - This statement is false. Loopback addresses are not used to form routing adjacencies. They are used for local identification of a router and can be used as the source address for routing updates.

D. EIGRP, OSPF, and BGP are the only routing protocols that support IPv6. - This statement is false. There are several other routing protocols that support IPv6, including RIPng, ISISv6, and Babel.

E. Link-local addresses are used to form routing adjacencies. - This statement is true. Link-local addresses are used to form routing adjacencies in both OSPFv3 and EIGRPv6. These addresses are automatically assigned to the interfaces of neighboring routers and are used for neighbor discovery and communication.