Transport and Session Layer
The Transport Layer is the fourth layer in the OSI (Open Systems Interconnection) model and is responsible for providing reliable end-to-end data transfer between applications on different hosts. This layer manages the transmission of data between applications, ensuring that data is transmitted reliably, efficiently, and in the correct order.
The Session Layer is the fifth layer in the OSI (Open Systems Interconnection) model and is responsible for establishing, managing, and terminating sessions between applications on different hosts. This layer provides a mechanism for applications to communicate with each other, maintain ongoing communications, and recover from errors that may occur during data transfer.