Tcp Ip Protocol Questions
Port numbers in the TCP/IP Protocol are used to identify specific applications or services running on a device. They act as virtual addresses that allow multiple applications to communicate simultaneously on a single device. Port numbers range from 0 to 65535, with well-known ports (0-1023) reserved for commonly used services such as HTTP (port 80) or FTP (port 21). When data is sent over the internet, it is divided into packets, and each packet contains both the source and destination port numbers. This allows the receiving device to correctly route the packets to the appropriate application or service.