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Which of the following statements is/are NOT CORRECT?
(A) OSPF is based on the distance-vector routing protocol.
(B) Both link-state and distance-vector routing are based on the least-cost goal.
(C) BGP4 is based on the path-vector algorithm.
(D) Three-node instability can be avoided using split horizon combined with poison reverse.
(E) RIP is based on the link-state algorithm.
Choose the correct answer from the options given below:

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Show answer & explanation

Correct answer: A. (A), (D) and (E) Only

Explanation

OSPF is link-state (A wrong), and RIP is distance-vector (E wrong). Split horizon with poison reverse fixes two-node loops but not three-node instability (D wrong). B and C are correct.

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