Full formTechnology
ARQstands forAutomatic Repeat reQuest
Full Form of ARQ
What is ARQ?
Automatic Repeat reQuest (ARQ) is an error-control method used in data communication to ensure reliable delivery of packets over unreliable channels. In networking, when a sender transmits a frame, the receiver checks for errors using techniques like cyclic redundancy check. If an error is detected, the receiver does not send an acknowledgment (ACK) or explicitly sends a negative acknowledgment (NAK), prompting the sender to retransmit the lost or corrupted frame. ARQ is fundamental in protocols such as TCP (Transmission Control Protocol) and in wireless networks like Wi-Fi and cellular systems. In India, ARQ is a core concept in computer networks syllabi for GATE, UGC-NET, and BTech courses. It is widely implemented in Indian telecom infrastructure, including 4G/5G networks, to maintain data integrity during mobile communication. ARQ variants include Stop-and-Wait, Go-Back-N, and Selective Repeat, each balancing efficiency and complexity. Understanding ARQ is essential for engineers working in network protocol design or data center operations. Exam questions often test calculation of throughput and window sizes for these ARQ schemes.
ARQ का फुल फॉर्म
स्वचालित पुनरावृत्ति अनुरोध
Example
The 4G LTE network in India relies on hybrid ARQ (HARQ) to combine error correction with retransmission for robust mobile data.
ARQ — frequently asked questions
What is the full form of ARQ?
ARQ stands for Automatic Repeat reQuest, an error-control mechanism in data communication.
How does ARQ work in computer networks?
ARQ works by having the receiver detect errors in received frames and request retransmission of corrupted or lost frames via acknowledgments.
What are the different types of ARQ protocols?
The main types are Stop-and-Wait ARQ, Go-Back-N ARQ, and Selective Repeat ARQ, each differing in how they handle retransmissions and window size.