Learn more. Asked 7 years, 4 months ago. Active 7 years, 4 months ago. Viewed 2k times. Add a comment. Active Oldest Votes. OnoSendai OnoSendai 3, 2 2 gold badges 23 23 silver badges 44 44 bronze badges. The Overflow Blog. Does ES6 make JavaScript frameworks obsolete? As a result, high-level protocols that need to transmit data all use TCP Protocol. TCP can be an expensive network tool as it includes absent or corrupted packets and protects data delivery with controls like acknowledgments, connection startup, and flow control.
UDP does not provide error connection or packet sequencing nor does it signal a destination before it delivers data, which makes it less reliable but less expensive. The Internet Protocol IP is the method for sending data from one device to another across the internet. Every device has an IP address that uniquely identifies it and enables it to communicate with and exchange data with other devices connected to the internet.
IP is responsible for defining how applications and devices exchange packets of data with each other. It is the principal communications protocol responsible for the formats and rules for exchanging data and messages between computers on a single network or several internet-connected networks. Its main purpose is to deliver data packets between the source application or device and the destination using methods and structures that place tags, such as address information, within data packets.
TCP and IP are separate protocols that work together to ensure data is delivered to its intended destination within a network. IP obtains and defines the address—the IP address—of the application or device the data must be sent to. TCP is then responsible for transporting and routing data through the network architecture and ensuring it gets delivered to the destination application or device that IP has defined. In other words, the IP address is akin to a phone number assigned to a smartphone.
TCP is the computer networking version of the technology used to make the smartphone ring and enable its user to talk to the person who called them.
It was developed by the United States Department of Defense to enable the accurate and correct transmission of data between devices. It breaks messages into packets to avoid having to resend the entire message in case it encounters a problem during transmission. Packets are automatically reassembled once they reach their destination. Every packet can take a different route between the source and the destination computer, depending on whether the original route used becomes congested or unavailable.
As a connection based protocol, the TCP establishes and maintains a connection between applications or devices until they finish exchanging data.
It determines how the original message should be broken into packets, numbers and reassembles the packets, and sends them on to other devices on the network, such as routers, security gateways, and switches, then on to their destination.
TCP also sends and receives packets from the network layer, handles the transmission of any dropped packets, manages flow control, and ensures all packets reach their destination. A good example of how this works in practice is when an email is sent using SMTP from an email server. Like shouting down a corridor there is no guarantee that a datagram will actually arrive at its destination or be clearly heard.
The Transmission Control Protocol TCP was developed to fill the need for a reliable, straightforward way to exchange data without having to worry about lost packets or jumbled data. Because the data is presented as a stream of bytes, existing code can easily be modified to use TCP. Each socket is an end-point that can be likened to a telephone. You need to establish a connection with the other program by selecting the socket address phone number of the application that you want to connect to.
Once a connection has been established with a socket in the addressee the applications programmer need only be concerned with reading and writing the data. Choosing the right Protocol. R1 But what to do with the web site?
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