There is no notable difference.
SMTP -(Simple Mail Transfer Protocol) is what is used with the basic email. There is also and extended one (ESMTP)- (Extended Mail Transfer Protocol). Hope this helped.
scp is secure copy ftp is file transfer protocol. FTP is a file transfer protocol as send the file inside the network
The data transmission software or protocols perform the following functions for the efficient and error free transmission of data.Data Sequencing - The function of a protocol to divide the long message into smaller packets of fixed size that are to be transmitted for error free data transmission, called Data Sequencing.Data Routing - The function of a protocol to find the most efficient path or route between the sender and the receiver before sending the data is called Data Routing.Flow Control - The function of a protocol to control the rate of data transmission from the sender to the receiver is called Flow Control. It regulates the process of sending data between fast sender and slow receiver.Error Control - The function of a protocol to detect and recover errors for successful data communication between the sender and the receiver is called Error Control. Successful data communication means that data is transmitted without any error.http://www.free-computer-tips.info/general-computer/data-communication-protocol.html
The network protocol that uses port 21 is FTP (File Transfer Protocol). FTP is commonly used for transferring files between a client and a server on a computer network. Port 21 is specifically designated for FTP control connections. When a user initiates an FTP connection, the client connects to the server's port 21 to establish communication for sending and receiving files. It is important to note that FTP operates in two modes: active mode and passive mode, each using different ports for data transfer.
BGP
The most common two are TCP (transmission control protocol) and UDP (user datagram protocol)
Border Gateway Protocol (BGP) is a way to transfer data and information between different hosts such the Internet or routers. It is commonly used between Internet Service Providers (ISPs).
SMTP -(Simple Mail Transfer Protocol) is what is used with the basic email. There is also and extended one (ESMTP)- (Extended Mail Transfer Protocol). Hope this helped.
File Transfer Protocol (FTP) is used for transferring files between an FTP client and an FTP server.
File Transfer Protocol (FTP), a standard Internet protocol, is the simplest way to exchange files between computers on the Internet. Like the Hypertext Transfer Protocol (HTTP), which transfers displayable Web pages and related files, and the Simple Mail Transfer Protocol (SMTP), which transfers e-mail, FTP is an application protocol that uses the Internet's TCP/IP protocols. FTP is commonly used to transfer Web page files from their creator to the computer that acts as their server for everyone on the Internet. It's also commonly used to download programs and other files to your computer from other servers.
scp is secure copy ftp is file transfer protocol. FTP is a file transfer protocol as send the file inside the network
The File Transfer Protocol is a standard network protocol used for the transfer of computer files from a server to a client on a computer network. FTP is built on a client-server model architecture using separate control and data connections between the client and the server
File Transfer Protocol
FTP (File Transfer Protocol).
Hyper Text Transfer Protocol (HTTP) is the application protocol that the internet uses to route data. It is designed to allow better communication between diverse servers and clients.
It is called Transmission Control Protocol. TCP handles the transfer of data as packets between two systems over a network. TCP acts as a layer over IP, handling the multiple requests and splitting data into packets, transparently to other applications.
The Network News Transfer Protocol (NNTP) is an Internet application protocol used for transporting Usenet news articles (netnews) between news servers and for reading and posting articles by end user client applications.