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Module 3: Network Layer & Routing

20192m

Which of the following is not applicable for IP?
(i) Error reporting
(ii) Handle addressing conventions
(iii) Datagram format
(iv) Packet handling conventions

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Answer: (i) Error reporting

Why: IP is a connectionless, best-effort service that only handles addressing conventions (source/destination address fields), the datagram format, and packet-handling conventions such as fragmentation, TTL and reassembly. Error reporting and diagnostic notification are done by ICMP, which sits on top of IP, so it is not an IP function.

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