--- title: "#udp articles | Hashnode" description: "Explore 511 articles tagged #udp on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/udp" --- Tag # #udp 511 posts · 2 followers [VISHAL M](https://hashnode.com/@valiant-vishal) · [Nov 3](https://hashnode.com/posts/tcp-udp-headers-explained/6ae9e9e2a500977e54b8254d) ### [Decoding TCP and UDP Headers, One Bit at a Time](https://whatisdatalinklayerswitching.hashnode.dev/tcp-udp-headers-explained?utm_source=hashnode&utm_medium=feed) Learn every TCP and UDP header field with simple diagrams: ports, checksum, flags, HLEN, pseudo-header and the 3-way handshake, plus solved GATE problems. 16 min read · [whatisdatalinklayerswitching.hashnode.dev](https://whatisdatalinklayerswitching.hashnode.dev/tcp-udp-headers-explained?utm_source=hashnode&utm_medium=feed) [Hardik Babla](https://hashnode.com/@hardikbabla) · [Oct 20](https://hashnode.com/posts/tcp-vs-udp-when-to-use-what/6ad77910d2cc1538074febcf) ### [TCP vs UDP: When to Use What, and How TCP Relates to HTTP](https://hardikdotdev.hashnode.dev/tcp-vs-udp-when-to-use-what?utm_source=hashnode&utm_medium=feed) TCP vs UDP explained for beginners: key differences, when to use each, real examples like video calls and banking, and how HTTP runs on top of TCP. 4 min read · [hardikdotdev.hashnode.dev](https://hardikdotdev.hashnode.dev/tcp-vs-udp-when-to-use-what?utm_source=hashnode&utm_medium=feed) [Kshitij Kumar](https://hashnode.com/@kshitiij) · [Oct 15](https://hashnode.com/posts/tcp-vs-udp-understanding-the-two-core-transport-protocols/6ad0e0f173828e0fa3a038c7) ### [TCP vs UDP: Understanding the Two Core Transport Protocols](https://blogs.kshitijgecs.dev/tcp-vs-udp-understanding-the-two-core-transport-protocols?utm_source=hashnode&utm_medium=feed) Every time you load a page, send a message, or join a video call, your data is broken into smaller units, sent across a chain of routers, and reassembled at the other end. None of that works unless th 10 min read · [blogs.kshitijgecs.dev](https://blogs.kshitijgecs.dev/tcp-vs-udp-understanding-the-two-core-transport-protocols?utm_source=hashnode&utm_medium=feed) [RONI DAS](https://hashnode.com/@ronidas) · [Oct 4](https://hashnode.com/posts/tcp-vs-udp-i-sent-20000-messages-to-a-slow-reader-and-udp-lost-70/6ac22f113a982e43f6a706bd) ### [TCP vs UDP: I sent 20,000 messages to a slow reader and UDP lost 70%](https://systemdesignacademy.hashnode.dev/tcp-vs-udp-i-sent-20000-messages-to-a-slow-reader-and-udp-lost-70?utm_source=hashnode&utm_medium=feed) TCP vs UDP in plain English, with a real test on a Mac: the same 20,000 messages to a slow reader. UDP lost 60% to 72% across three runs, TCP lost none. 6 min read · [systemdesignacademy.hashnode.dev](https://systemdesignacademy.hashnode.dev/tcp-vs-udp-i-sent-20000-messages-to-a-slow-reader-and-udp-lost-70?utm_source=hashnode&utm_medium=feed) [Ciphemic academia](https://hashnode.com/@ciphemicacademia) · [Sep 30](https://hashnode.com/posts/tcp-vs-udp-why-protocol-choice-actually-matters/6abc68c64b2c62a5f8a7bc7b) ### [TCP vs. UDP: Why Protocol Choice Actually Matters](https://ciphemicacademia.hashnode.dev/tcp-vs-udp-why-protocol-choice-actually-matters?utm_source=hashnode&utm_medium=feed) TCP guarantees delivery, UDP guarantees speed. A practical comparison of when each protocol fits. 10 min read · [ciphemicacademia.hashnode.dev](https://ciphemicacademia.hashnode.dev/tcp-vs-udp-why-protocol-choice-actually-matters?utm_source=hashnode&utm_medium=feed) [Zero Trust Threads](https://hashnode.com/@zerotrustthreads) · [Sep 7](https://hashnode.com/posts/ports-and-protocols-what-cybersecurity-beginners-actually-need-to-know/6a9f04a1a2264eeb94fa035a) ### [Ports and Protocols: What Cybersecurity Beginners Actually Need to Know](https://zerotrustthreads.hashnode.dev/ports-and-protocols-what-cybersecurity-beginners-actually-need-to-know?utm_source=hashnode&utm_medium=feed) Learn what network ports and protocols actually do, how TCP and UDP differ, and why ports matter when learning cybersecurity. 5 min read · [zerotrustthreads.hashnode.dev](https://zerotrustthreads.hashnode.dev/ports-and-protocols-what-cybersecurity-beginners-actually-need-to-know?utm_source=hashnode&utm_medium=feed) [Bikash Shaw](https://hashnode.com/@bikash-shaw) · [Aug 20](https://hashnode.com/posts/computer-networks-6-user-datagram-protocol-udp/6a87447ab6fa8c06f18365c3) ### [Computer Networks #6: User Datagram Protocol (UDP)](https://backendblogs.hashnode.dev/computer-networks-6-user-datagram-protocol-udp?utm_source=hashnode&utm_medium=feed) Learn about UDP and the anatomy of datagram packets. 12 min read · [backendblogs.hashnode.dev](https://backendblogs.hashnode.dev/computer-networks-6-user-datagram-protocol-udp?utm_source=hashnode&utm_medium=feed) [Abhijeet Shinde](https://hashnode.com/@abhijeet2005) · [Jul 26](https://hashnode.com/posts/routing-icmp-udp-and-the-udp-datagram-explained/6a660e64ddd7f2a97f6767dd) ### [Routing, ICMP & the UDP Datagram — How Data Travels, Gets Diagnosed, and Moves Fast](https://weeklyupdate.hashnode.dev/routing-icmp-udp-and-the-udp-datagram-explained?utm_source=hashnode&utm_medium=feed) How routers and switches move data, how ping and traceroute use ICMP and TTL to diagnose it, and why UDP's 8-byte header is built for speed. 8 min read · [weeklyupdate.hashnode.dev](https://weeklyupdate.hashnode.dev/routing-icmp-udp-and-the-udp-datagram-explained?utm_source=hashnode&utm_medium=feed) [Abstract Algorithms](https://hashnode.com/@abstractalgorithms) · [Jul 2](https://hashnode.com/posts/tcp-vs-udp-byte/6a45c4de19a53d5d37e801bb) ### [TCP vs UDP in a Nutshell](https://abstractalgorithms.hashnode.dev/tcp-vs-udp-byte?utm_source=hashnode&utm_medium=feed) Compare the connection-oriented reliability of TCP with the low-latency speed of UDP. 1 min read · [abstractalgorithms.hashnode.dev](https://abstractalgorithms.hashnode.dev/tcp-vs-udp-byte?utm_source=hashnode&utm_medium=feed) [Swastisunder Badatya](https://hashnode.com/@swastisunder) · [May 31](https://hashnode.com/posts/tcp-vs-udp-the-internet-s-two-delivery-boys/6a1c241b5f07fb89cc34fad8) ### [TCP vs UDP : The Internet's Two Delivery Boys](https://swasti.hashnode.dev/tcp-vs-udp-the-internet-s-two-delivery-boys?utm_source=hashnode&utm_medium=feed) Learn dif ference between TCP and UDP, when to use both, and how HTTP works on top of TCP in real internet communication. 6 min read · [swasti.hashnode.dev](https://swasti.hashnode.dev/tcp-vs-udp-the-internet-s-two-delivery-boys?utm_source=hashnode&utm_medium=feed)