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Which layer of the OSI model allows a connection-oriented service to provide reliable networking with sequencing, acknowledgements and flow control?
Transport
Data-link
Network
Physical
Layer 4 "Transport Layer" focuses on matters related to data delivery in a network, whether is reliable or unreliable communication. A service is connection-oriented if it has the following characteristics: 1) A Virtual Circuit is set up. 2) It uses sequencing. 3) It uses acknowledgements. 4) It uses flow control.
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