Question: At the transport layer, to define the processes, we need two identifiers called ____________.

Answer:

At the transport layer, to define the processes, we need two identifiers called source port number and destination port number together we call it port Address. These port numbers are used to identify the specific application or process running on the host computer. Source port number identifies the sending process and destination port number identifies the receiving process. Together with the IP address, the port numbers allow for reliable delivery of data between different applications on different hosts.