Quick definition: User Datagram Protocol (UDP) is a communications standard for exchanging data over the Internet. UDP prioritizes speed over reliability, using a connectionless process to send data packets to a destination. Due to its low latency, UDP is ideal for time-sensitive use cases like video streaming, Voice over Internet Protocol (VoIP), video gaming, and Domain Name System (DNS) lookups.
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A Comprehensive Guide to IoT Protocols
When network entities like servers, gateways, routers, applications, and connected devices interact, protocols give them a shared language. A protocol is a set of rules both network entities must have in common in order to communicate. It governs what their interactions look like, what values and attributes can be transmitted, how they’re received and processed, what security methods will be used, and more.
What Is USSD? Unstructured Supplementary Service Data
USSD allows you to send small data packages without a data connection and without incurring SMS costs. It’s typically used for sending short requests and commands, and these messages can only contain a maximum of 182 characters (16 bits of data). USSD doesn’t support Multimedia Messages (MMS) like audio, video, or images.
What Is Transmission Control Protocol (TCP)?
Unlike User Datagram Protocol (UDP)—another standard that applications use to exchange data—TCP is designed for accuracy, not speed. In data transport, data packets can sometimes arrive out of order or get lost. TCP numbers each packet to ensure that every piece reaches its destination and can be rearranged if needed. When packets don’t arrive within a specified timeframe, Transmission Control Protocol requests re-transmission of the lost data.