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Acknowledgments, sequencing , and flow control are characteristics of which OSI layer?

Acknowledgments, sequencing , and flow control are characteristics of which OSI layer? Correct Answer Layer 4

A reliable Transport layer connection uses acknowledgments to make sure all data is transmitted and received reliably. A reliable connection is defined by a virtual circuit that uses acknowledgments, sequencing, and flow control, which are characteristics of the transport layer.

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Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?
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