Point-to-Point Protocol (PPP) is the most commonly used protocol for dial-up connections.
Http. HyperText Transport Protocol, the communications protocol used by theWorld Wide Web
TCP
data protocol is used to route the data from the source to destination, and it is also used for congestion control, flow control & error control in the data that is being transmitted........... data protocol is responsible for the end to end delivery of the data, which may be in the form of messages, frames, packets across the different layers of the protocol architecture....
Protocol Data Unit (PDU)
The answer is Protocol's. Protocol is the set of rules for formatting the data across the network.
A technical protocol is an agreement that all participants must adhere to. The term "protocol" is often used as "communications protocol." A communications protocol is a protocol that defines the rules by which two or more components communicate. A communications protocol normally includes a physical and a logical part. The physical part would define the physical media and signals used to exchange the raw data, while the logical part defines the raw data's semantics. For example, a simple serial protocol might consist of a physical layer agreement to use a single pair of receive and transmit lines R and T, crossed-over between two communication partners, and a connecting signal ground line. The R and T lines could be defined as using a standard asynchronous serial protocol with 8 data bits, 1 stop bit, and even parity (8NE) at 19,200 kbps. The logical protocol would then define how the raw data is to be interpreted. For example, if the receiver were a controller for an elevator, sending a byte with value 1 might mean "move to the first floor," and the elevator might respond with a single byte of value 1 to say "I have reached the first floor." Both physical and logical agreements for the communications protocol. Other protocols follow the same principles but may not be designed to allow for communication, or only in the wider sense of the word. For example, visual light is used as a physical media, and a whole set of widely known rules make the logical layer of the protocol that governs the use of traffic lights.
The transmission control protocol or TCP is used for connection oriented transmissions of data into a computer. The user datagram protocol or UDP is used to transmit simpler data into a computer.
http:// = hypertext transfer protocol = which is also the URL
The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.
A set of rules used for transferring data over the Internet is called a "protocol".Hypertext transfer protocol, HTTP.
A reliable data transfer is one that is stable . For a reliable data transfer a connection oriented protocol is used. A connection oriented protocol is one that receives acknowledgement from the receiver before sending the further data.
The protocol for guaranteeing delivery is TCP. For breaking data into packets is IP. For decrypting and decompressing data is HTTP