350-601 · Question #321
An engineer must configure OSPFv2 connectivity between a pair of Cisco Nexus switches. The connection between the switches must meet these requirements: - Use unicast for updates. - Use…
The correct answer is D. virtual link between the neighbors. An OSPF virtual link meets all three stated requirements. Virtual links use unicast for routing updates (not multicast), establish a direct logical connection between non-backbone areas and Area 0 without relying on a centralized DR/BDR mechanism (supporting decentralized…
Question
An engineer must configure OSPFv2 connectivity between a pair of Cisco Nexus switches. The connection between the switches must meet these requirements:
- Use unicast for updates.
- Use decentralized communication of updates.
- Full adjacency between switches.
Which configuration is needed to meet these requirements?
Options
- Ainterface with a type of p2p network
- Bstub area between the neighbors
- Cfilter list between the neighbors
- Dvirtual link between the neighbors
How the community answered
(35 responses)- A11% (4)
- B3% (1)
- C3% (1)
- D83% (29)
Explanation
An OSPF virtual link meets all three stated requirements. Virtual links use unicast for routing updates (not multicast), establish a direct logical connection between non-backbone areas and Area 0 without relying on a centralized DR/BDR mechanism (supporting decentralized update communication), and form a full OSPF adjacency (Full state) between neighbors. Option A (p2p network type) also uses unicast and avoids DR/BDR, but in this exam context the virtual link is the answer because the scenario implies connectivity across areas that requires a virtual link topology. Options B (stub area) and C (filter list) do not address the transport or adjacency requirements stated.
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