Which OSPF data structure is identical in all routers in an OSPF area after convergence?
- Adjacency database
- Link-state database
- Routing table
- SPF tree
Explanation: Each OSPF router views the network differently as the root of a unique SPF tree. Each router builds adjacencies based on its own position in the topology. Each routing table in the area is developed individually through the application of the SPF algorithm. The link-state database for an area, however, must reflect the same information for all routers. Regardless of which OSPF area a router resides in, the adjacency database, routing table, and forwarding database are unique for each router. The link-state database lists information about all other routers within an area and is identical across all OSPF routers participating in that area.
Exam with this question: CCNA 3 Module 1 Quiz - Single-Area OSPFv2 Concepts
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