The ..................lies between the network layer and application layer.
The Transport lies between the network layer and application layer.
The transport layer is the layer in the open system interconnection (OSI) model responsible for end-to-end communication over a network. It provides logical communication between application processes running on different hosts within a layered architecture of protocols and other network components.
The transport layer is responsible for the process to process delivery of the entire message. A process is an application program running on a system. The transport layer ensures that the whole message arrives at the receiver intact and in order.
As layer four of the OSI model, the transport layer is responsible for providing communication services between computers on a network.