Osi Model Questions Medium
The Transport layer in the OSI Model is responsible for the end-to-end delivery of data between source and destination hosts. Its main role is to provide reliable and efficient communication services to the upper layers of the OSI Model.
The Transport layer ensures that data is delivered accurately and in the correct order by breaking it into smaller segments, if necessary, and adding sequence numbers to each segment. It also handles error detection and correction, ensuring that any errors or lost data during transmission are detected and retransmitted if needed.
Another important function of the Transport layer is flow control, which manages the rate of data transmission between the sender and receiver. It prevents the sender from overwhelming the receiver with data and ensures that the receiver can handle the incoming data at its own pace.
The Transport layer also provides multiplexing and demultiplexing capabilities. Multiplexing allows multiple applications or processes running on the same host to share the network connection, while demultiplexing ensures that the received data is correctly delivered to the appropriate application or process.
In summary, the Transport layer plays a crucial role in ensuring reliable and efficient communication between hosts by providing end-to-end delivery, error detection and correction, flow control, and multiplexing/demultiplexing capabilities.