Which of the following is TRUE about the interior gateway routing protocols −…
2014
Which of the following is TRUE about the interior gateway routing protocols − Routing Information Protocol (RIP) and Open Shortest Path First (OSPF)
- A.
RIP uses distance vector routing and OSPF uses link state routing
- B.
OSPF uses distance vector routing and RIP uses link state routing
- C.
Both RIP and OSPF use link state routing
- D.
Both RIP and OSPF use distance vector routing
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Correct answer: A
Answer: RIP uses distance vector routing and OSPF uses link state routing
Why this is true:
RIP (Routing Information Protocol):
Distance-vector protocol that advertises routes to neighbors.
Uses hop count as its metric (maximum 15 hops), and sends periodic full updates.
Generally simpler but has slower convergence and scalability limitations.
OSPF (Open Shortest Path First):
Link-state protocol that builds a network topology map (link-state database).
Uses Dijkstra's shortest-path-first algorithm to compute routes, providing faster convergence.
Supports hierarchical areas and classless addressing (VLSM/CIDR), improving scalability and route summarization.
Why the other statements are incorrect:
Any claim that both protocols are link-state is wrong because RIP is distance-vector.
Any claim that both protocols are distance-vector is wrong because OSPF is link-state.
Any statement that swaps the protocol types is simply reversed and therefore incorrect.
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