Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 102
Which statement is true about OSPF Network LSAs?
Answer options
- A. They are originated by every router in the OPSF network. They include all routers on the link, interfaces, the cost of the link, and any known neighbor on the link.
- B. They are originated by the DR on every multi-access network. They include all attached routers including the DR itself.
- C. They are originated by Area Border Routers and are sent into a single area to advertise destinations outside that area.
- D. They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.
Correct answer: O, S, P, F
Explanation
The correct answer is B because Network LSAs are indeed generated by the Designated Router (DR) on multi-access networks and include all routers connected to that network segment. Options A, C, and D are incorrect as they misrepresent the origin and purpose of Network LSAs, which are not generated by every router and do not relate to Area Border Routers in the context specified.