Transport layer processes use what technique for managing multiple transmissions?

The transport layer in the OSI model is responsible for providing end-to-end communication services for applications, and one of its key functions is to manage multiple transmissions effectively. Multiplexing is the correct technique for this purpose.

Multiplexing allows the transport layer to manage multiple streams of data from various applications over a single network connection. This is accomplished by combining several data streams into one signal over a shared medium. The transport layer adds headers to each segment of data that indicate which application the data belongs to, thus enabling the correct delivery of information to the intended application on the receiving end.

This technique is essential for efficient use of network resources, enabling better bandwidth utilization and allowing multiple communications to occur simultaneously without interference. It ensures that different sessions are kept separate and that the data can be correctly reconstructed at the destination.

In contrast, encryption involves securing data by encoding it, which is not directly related to managing multiple transmissions. Segmentation refers to breaking data into smaller packets for transmission but does not inherently manage multiple streams. Parallelization implies performing tasks simultaneously but does not specifically address how the transport layer handles distinct data flows.