Transport Layer Flashcards
How does the Transport Layer work?
Sets up the communication between hosts and agrees setting such as language and packet size. Divides data received from application layer into packets of the correct size and adds packet information such as packet number of packets. Checks that packets arrive safely (TCP) and sends acknowledgements when received data.
What is TCP?
Transmission Control Protocol –Defines how messages are split into packets and reassembled at the destination. Detects errors and resends lost packets.
What is UDP?
User Datagram Protocol –Alternative to TCP not has no error checking or correction. Maintains an open connection between sender and receiver for the duration of the communication.
What is UDP used for?
Often used for online gaming and live broadcasting where speed is desirable and error connection is not necessary.
