Question: protocols used in transport layer of osi model
Answer: Service TP0 TP1 TP2 TP3 TP4 Connection - oriented network Yes Yes Yes Yes Yes Connectionless network No No No No Yes Concatenation and separation No Yes Yes Yes Yes Segmentation and reassembly Yes Yes Yes Yes Yes Error recovery No Yes No Yes Yes Reinitiate connection ( if an excessive number of PDUs are unacknowledged ) No Yes No Yes No Multiplexing and demultiplexing over a single virtual circuit No No Yes Yes Yes Explicit flow control No No Yes Yes Yes Retransmission on timeout No No No No Yes Reliable Transport Service No Y