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Module 3: Network Layer & Routing

20212m

Internetworking protocol is known as

(i) TCP
(ii) IP
(iii) ISP
(iv) TCP/IP

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Answer: (ii) IP

Why: IP (Internet Protocol) is the network-layer protocol that delivers packets hop-by-hop across interconnected networks using logical addresses — that is exactly what "internetworking" means. TCP is only a transport-layer protocol, an ISP is an organisation that provides connectivity (not a protocol), and TCP/IP is the name of the entire protocol suite rather than one single protocol.

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