Connectionless Protocol ========================= .. panels:: :container: container-fluid p-4 bg-light :column: col-lg-12 .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is Connectionless communication?** A connectionless protocol like UDP sends data packets without establishing a dedicated end-to-end connection, meaning each packet is treated independently. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Why is Connectionless communication useful?** Connectionless communication is useful for applications where speed and low latency matter more than guaranteed delivery, such as video streaming, gaming, and voice calls. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does Connectionless communication work?** UDP sends datagrams individually without handshakes or acknowledgments. There is no guarantee that packets will arrive or arrive in order. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Where is Connectionless communication used?** Commonly used in real-time applications like live broadcasts, online multiplayer games, DNS queries, and VoIP. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Which OSI layer does Connectionless communication belong to?** Connectionless protocols like UDP operate at the **Transport Layer (Layer 4)** of the OSI model. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is Connectionless communication Windows specific?** No, connectionless communication via UDP is implemented on all major platforms including Windows, Linux, and macOS. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is Connectionless communication Linux specific?** No, UDP is universally supported across all operating systems as a fundamental part of the internet protocol suite. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Which Transport Protocol is used by Connectionless communication?** The primary transport protocol used for connectionless communication is **UDP (User Datagram Protocol)**. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is Connectionless communication using client-server model?** Yes, connectionless communication is often used in client-server models where speed is prioritized over reliability, such as DNS servers responding to client queries. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow Topics in this section, * :ref:`Learnings in this section ` * :ref:`Terminology ` * :ref:`Version Info ` * :ref:`Connectionless Protocol Basic Setup on Ubuntu using IPv4 ` * :ref:`UDP Feature : Connectionless Protocol ` * :ref:`Reference links ` .. _Connectionless_Protocol_step1: .. tab-set:: .. tab-item:: Learnings in this section * In this section, you are going to learn .. _Connectionless_Protocol_step2: .. tab-set:: .. tab-item:: Terminology * Terminology .. _Connectionless_Protocol_step3: .. tab-set:: .. tab-item:: Version Info * Version Info .. _Connectionless_Protocol_step18: .. tab-set:: .. tab-item:: Connectionless Protocol Basic Setup on Ubuntu using IPv4 * setup .. _Connectionless_Protocol_step4: .. tab-set:: .. tab-item:: UDP Feature : Connectionless Protocol **Connectionless Protocol - Testcases** .. csv-table:: :file: ./UDP_Feature1_Connectionless_protocol_Test_Cases.csv :widths: 10,10,30,20 :header-rows: 1 .. _Connectionless_Protocol_step17: .. tab-set:: .. tab-item:: Reference links * Reference links