usb
By the port number or the port address
Identifies the port number of a destination application program.
Source Port number is the unique application identification number of the service/application at sender side which sending data to the receiver. Using this source port number the receiver thus can identify which service/application has send this packet and to which application/service the receir should reply to if necessary. -- By MyNarutoAnime ----
Port addressing is giving different applications a unique port number so data can be forwarded to the correct application
port as a phone extension, with the computer's IP address being like its phone number. You can call the number (IP address) to talk to the computer, then dial the extension (port) to talk to a specific application. An application needs to be listening on a port in order to communicate. A Protocole is just the language that the two applications on either end of a conversation agree to speak in. If your application is sending streams of bytes to my application, my application needs to know how to interpret those bytes.
HTTP is the hyper text transfer protocol . The port used by HTTP is port 80 . The HTTP is the protocol of application layer.
What is the technician intending to do with the software application
port
port
False - Port Number is the address on the host.
Port
80