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Which of the following OSI layers handles flow control?
Physical
Transport
Network
Data Link
The Transport layer of OSI model is responsible for end-to-end message transfer capabilities independent of the underlying network, along with error control, segmentation, flow control, congestion control, and application addressing (port numbers). End to end message transmission or connecting applications at the Transport layer can be categorized as either connection-oriented implemented in Transmission Control Protocol (TCP), or connectionless implemented in User Datagram Protocol (UDP). EDIT - There are also flow control mechanisms at L2 and L1 OSI layers as well. *** Agreed, flow control occurs in multiple layers and the possible answers are ambiguous.
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