Multiple connection
is prefer when you are downloading many files of a same server
An SMTP port is the port used to transfer email using the SMTP protocol. Typically SMTP is configured to use TCP port 25, although some servers will use TCP port 587.
local exchange to subscriber connections that use the calling line ID presentation service exchange to PBX connections
IMAP (Internet Message Access Protocol) uses TCP (Transmission Control Protocol) for communication. The standard port for IMAP is 143, while the secure version, IMAPS, typically uses port 993. Unlike UDP, TCP provides a reliable connection, ensuring that messages are delivered in the correct order without loss.
IP, or Internet Protocol, is required to use the public Internet. While sometimes called "TCP/IP", TCP-Transmission Control Protocol-is only one part of the Internet Protocol suite, which includes many others, such as UDP (User Datagram Protocol), ICMP (Internet Control Message Protocol), etc.
FTP uses TCP because the file transfer has to be correct.TFTP uses UDP for speed, but not everything will get there.
FTP; HTTP; DNS (uses both TCP and UDP); several e-mail protocols including POP3, SMTP, IMAP4.
Generally port 21 is for FTP 22 for FTP using SSH 990 FTP using SSL
Telnet is similar to HTTP and FTP in that all three use the TCP protocol for connection-oriented
Ftp is a file transfer protocol use with TCP/IP Protocol to transfer files directly to a server through the internet.
TCP
Both use TCP, a protocol that ensures the delivery of information without corruption and in the right order. However, each protocol uses TCP a little bit differently, with designed mainly for sending and retrieving data while ftp is designed for file operations.
Both use TCP, a protocol that ensures the delivery of information without corruption and in the right order. However, each protocol uses TCP a little bit differently, with designed mainly for sending and retrieving data while ftp is designed for file operations.
There are many lower level internet protocols than HTTP. Some are: UDP, FTP, TCP, POP, SMTP, ICMP, etc. HTTP is a layer added to support the web, it makes use of TCP to transfer its data.
Use the 'netstat' utility
Open command prompt and type netstatThis will show all ports in use and all ingoing\outgoing connections along with the connection type. TCP, UDP
IP is the greatest used protocol on the internet. It IS the internet. The protocols on the internet can be looked at as being done in layers, with IP at the bottom (usually) . TCP and UDP are other connections which rely on the underlying IP network to communication, with TCP being the most commonly used since it offers an end to end connection for the protocols above it (UDP is a connectionless, best effort protocol) Finally, using TCP, we have the remaining protocols such as ftp, http and others. Not many higher layer protocols will use UDP since there is no garuntee that data is deliverd to its desitination correctly. A quick example of a protocol using UDP would be a DNS request. What little abbreviations are hidden in asterisks??****//www.google.com****//www.wikianswers.com****//www.hotmail.com****//www.myspace.comId imagine http is the most common. Then again I know there's alot of people who spend all their time uploading and downloading torrent after torrent.Incase you or somebody else reading this doesnt know whats behind the asterisks: its http----HTTP is definitely the most common; however, out of the protocols you listed TCP is more common simply because all HTTP communication uses TCP as well, and other protocols such as FTP also use TCP.