What is UDP and how does it help the transport layer?

UDP stands for User Datagram Protocol. The UDP is similar to the TCP(Transmission Control Protocol) where it runs on top of the IP networks.  The way in which this protocol helps out the transport layer in doing its purpose is that it has the advantage of  providing for low overhead data delivery. the communication pieces when using the UDP is called datagrams. It makes the transport layers job much more easier since it has no connection establishment. Meaning does less steps than for example the TCP and transfers data much quicker. As a result, of transferring data much quicker it is a lot faster and makes the transport layers job run much more smoothly.