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Module 3: Network Layer & Routing

20232m

Which the following is an inter-domain routing protocol?
(i) RIP
(ii) OSPF
(iii) BGP
(iv) Both (a) & (b)

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Answer: (iii) BGP

BGP (Border Gateway Protocol) is the inter-domain (exterior) routing protocol that exchanges routes between autonomous systems on the Internet. RIP and OSPF are intra-domain (interior) protocols that work inside one AS, so option (iv) is wrong.

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