UDP can be used in many applications for transport, not just a single application. UDP is commonly used when speed is more important than reliability in the transfer.
UDP is a layer 4 (transport) protocol.
UDP is a Transport layer protocol or fourth layer protocol. UDP is a connection less protocol used in transport layer. UDP header have four fields in total .
Transport layer TCP/IP Protocols are TCP and UDP
tcp
**The TCP transport layer protocol uses windowing and acknowledgments for reliable transfer of data. **The TCP and UDP port numbers are used by application layer protocols. **The TCP transport layer protocol provides services to direct the data packets to their destination hosts.
UDP and ports 67 and 68.
UDP
UDP
TCP and UDP are transport layer protocols; the OSI layer is layer 4 (transport)
There are actually two different GTP protocols. GTP (Go Text Protocol) is basically an application layer protocol, although the definition is a bit fuzzy. GTP (GPRS Tunneling Protocol) is a transport layer protocol that is used in conjunction with another transport layer protocol (TCP or UDP).
UDP
UDP - primarily for speed is used to transport voice packets in a VoIP deployment.