TCP/IP Protocols

TCP/IP is a protocol that enables data to be sent across a network in streams. TCP/IP converts data into data packets (chunks of data), sends the data packet across the network, and reassembles the data packet at the destination. Each data packet consists of the data and an Internet Protocol (IP) header. The IP header contains information relating to how to send the data packet and how to reassemble the data. TCP/IP protocols are based on a client/server relationship. The following are TCP/IP protocols:

HTTP protocol

HTTP enables users to view and transfer data over the World Wide Web using a Web browser such as Netscape Navigator. All Web sites are managed by an HTTP server.

FTP protocol

FTP transfers files across a network. When you connect to an FTP server, you can download files. The FTP server can determine what files can and cannot be accessed.

SMTP protocol

SMTP enables users to send electronic mail over a network.

POP protocol

POP enables users to retrieve electronic mail from a mail server located on the network.

IMAP protocol

IMAP enables users to retrieve electronic mail from a mail server located on the network.