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Module 3: Network Layer & Routing

20152m

Network layer of OSI model does not establish any relationship among different packets of same message. (Write True or False)

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True.

Why: The network layer provides connectionless (datagram) service in IP — each packet is routed independently and carries no binding to other packets of the same message. Relationships among segments of one message (ordering, sequencing, reassembly) are maintained by the transport layer (e.g., TCP), not by the network layer. (Only connection-oriented network layers such as ATM/legacy X.25 establish such relationships.)

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