UDP is a 'connectionless' / unreliable protocol, it does not recover lost packets like TCP does, and has much less overhead than TCP, so it is used as transport for applications that are sensitive to delay (like streaming audio / video).

UDP Versus TCP for VoIP - OnSIP TCP and UDP are two of the most commonly used connection protocols used for data traversal across the Internet. Data travels across the Internet in packets. Think of them like letters: Like letters, the packets have an envelope with a to/from address on them. TCP and UDP are just two types of envelopes. TCP vs UDP - javatpoint UDP is faster than TCP as it does not provide the assurance for the delivery of the packets. Differences between the TCP and UDP. Type of protocol Both the protocols, i.e., TCP and UDP, are the transport layer protocol. TCP is a connection-oriented protocol, whereas UDP is a connectionless protocol. Why is TCP more secure than UDP? - Information Security

TCP vs UDP: What's the Difference? - Guru99

UDP is mainly used for online streaming and downloading. TCP is more reliable but a little slower than UDP and usually used for web browsing. You can watch our video for a more detailed explanation: Difference between TCP 1433 and UDP port 1434

UDP vs. TCP | Pixelstech.net

RDP session to Windows 10 workstation using TCP instead of UDP Mar 25, 2020 SIP Port udp or tcp - Cisco Community Hello, This should be easy to determine, but I seem to find conflicting info. on the Internet. Does SIP use TCP 5060 or UDP 5060? Thanks Testing Sophos SSL VPN Performance - UDP or TCP?