In electronic mail, which of the following protocols allows the transfer of multimedia messages?
A socket address is the combination of an IP address and a port number, much like one end of a telephone connection is the combination of a phone numberand a particular extension. Sockets need not have an address (for example for only sending data), but if a program binds a socket to an address, the socket can be used to receive data sent to that address.
Ans must be D
because SMTP cannot handle non-textual data such as pictures, images, and video/audio content
The combination of an IP address and a port number is known as socket address.