Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 87

Which three statements about OSPF areas are true? (Choose three.)

Answer options

• A. Areas introduce a boundary on the link-state updates.
• B. Areas are logical definitions specific to any given router.
• C. All routers within an area have the exact link-state database.
• D. The calculation of the Dijkstra algorithm on a router is limited to changes within an area.

Correct answer:

Explanation

Option A is correct because areas indeed establish boundaries for link-state updates. Option C is also correct, as all routers within the same OSPF area maintain identical link-state databases. Option D is true because the Dijkstra algorithm's computations are restricted to changes that occur within the same area. However, option B is incorrect because areas are not specifically defined for individual routers; they group routers together based on network topology.