Difference between udp and tcp ip?

Answer:
UPD is so called "connectionless" protocol. What it means is that it does not guaranty deliver of your packages.
When TCP make sure that your network package was delivered, it does not have errors, and it put together with other packages in the proper order.
First answer by Archangel dmitry. Last edit by Imwings. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].