TCP vs. UDP: Understanding the Difference
Using UDP Services | Microsoft Docs To send a datagram using UDP, you must know the network address of the network device hosting the service you need and the UDP port number that the service uses to communicate. The Internet Assigned Numbers Authority (IANA) defines port numbers for common services (see Service Name and Transport Protocol Port Number Registry). UDP – what the User Datagram Protocol can do - IONOS The User Datagram Protocol, or UDP for short, is a protocol that allows datagrams to be sent without connectionin IP-based networks. To achieve the desired services on the target hosts, it uses ports that are listed as one of the core components in the UDP header. What is UDP and how to establish a UDP connection Jan 31, 2019
Oct 04, 2018
How do I change VPN protocols? - ProtonVPN Support These ProtonVPN apps can use the OpenVPN VPN protocol, which supports both the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP). These two protocols determine how the packets of data that make up your online traffic are sent from your device to the VPN server. UDP-Based Amplification Attacks | CISA
Oct 16, 2019
To expand on Sam Chen's answer UDP is used when some loss is acceptable and the cost for reliable transmission features like packet ordering and retransmission is unacceptable. Consider VoIP. The codecs and protocols are designed to compensate f Google’s QUIC protocol: moving the web from TCP to UDP