However... SMTP just stands for simple mail transfer protocol. It's one of a few email/communication protocols we use over the internet and our networks to send emails. FTP is what we call the file transfer protocol. This is more-or-less self-explanatory; but it's what we use to handle the process of transfer data across network interconnects amongst other protocols i.e. TCP/IP. Note: "Try researching on the OSI model which should help you understand more about the way networks communicate and handle the data being sent over the internet."
Don't mind for me asking a question like this what do you know about networking if you don't know then go for www.cisco.com you will get all of your answers