Question:
What are two features of OSPFv3? (Choose two.)
- IPv6 is used to transport OSPFv3 messages for IPv4 and OSPFv3 messages for IPv6.
- By default, OSPFv3 enables both IPv4 and IPv6 addressing on an interface.
- A 32-bit router ID is used when configuring OSPFv3 for IPv4 and IPv6.
- A 32-bit router ID is used for OSPFv3 for IPv4 and a 128-bit router ID for OSPFv3 for IPv6.
- IPv4 is used to transport OSPFv3 IPv4 messages and IPv6 is used to transport OSPFv3 IPv6 messages.
Explanation: OSPFv3 runs directly over IPv6 and inter-router communication for both IPv4 and IPv6 address families is handled by IPv6 link-local addressing. OSPV3 uses a 32-bit router ID for IPv4 and IPv6 address families routing. IPv6 addressing is not enabled by default on Cisco router interfaces.
Exam with this question: CCNP Enterprise: Advanced Routing (Version 8.0) – OSPF Exam
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