TCP/UDP Ports
NOTE
TCP and UDP Ports CompTIA's objective for this section states “Describe the functions of TCP/UDP ports,” which leaves you wondering if there is a difference between TCP and UDP ports. In reality there isn't. It's simply that some protocols use UDP and others use TCP.
Define the function of TCP/UDP ports and identify well-known ports.
The TCP/IP protocol suite offers so many services and applications that a mechanism is needed to identify to which protocol the incoming communications should be sent. That mechanism is a TCP/IP port.
Each TCP/IP protocol or application has a port associated with it. When a communication is received, the target port number is checked to see what protocol or service it is destined for. The request ...
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