Typical applications of each method of data transmission across networks

Methods of sending data over a network, including: packet switching o the structure of packets, including what is contained in the packets o the modes of connection – how and why they are used, including: • connection mode, for example, frame relay, Transmission Control Protocol (TCP) • connectionless (datagram) mode, for example, ethernet, Internet Protocol (IP), User Datagram Protocol (UDP), circuit switching, including: o the use of communication channels in circuit switching, message switching, including: o the store of and forward method of sending messages across networks