4A0-100 · Question #339
Which of the following is a characteristic of Link State protocols?
The correct answer is C. Routers know the entire network topology. Link-State routing protocols (e.g., OSPF, IS-IS) operate by: Each router flooding link-state advertisements (LSAs) throughout the network. Every router constructs a complete map of the network topology. Then each router runs the SPF algorithm to compute optimal paths. Option C…
Question
Which of the following is a characteristic of Link State protocols?
Options
- ARouters send a copy of their entire routing table to their neighbors.
- BRouters send frequent periodic updates to the entire network.
- CRouters know the entire network topology.
- DRouters use hop-count to calculate their routing tables.
How the community answered
(31 responses)- A16% (5)
- B10% (3)
- C71% (22)
- D3% (1)
Explanation
Link-State routing protocols (e.g., OSPF, IS-IS) operate by: Each router flooding link-state advertisements (LSAs) throughout the network. Every router constructs a complete map of the network topology. Then each router runs the SPF algorithm to compute optimal paths. Option C is correct - routers know the entire network topology.
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