Is reliable data transfer possible over UDP?

Yes, it is possible for an application to have reliable data transfer when the application runs over UDP. By doing so, the application processes can communicate reliably without being subjected to the transmission rate constraints imposed by TCP’s congestion control mechanisms.

Why is UDP reliable?

UDP uses a simple transmission model without implicit handshaking techniques for providing reliability and ordering of packets. Thus, UDP provides an unreliable service and datagrams may arrive out of order, appear duplicated, or go missing without notice.

Can UDP be used for file transfer?

UDP, which stands for User Datagram Protocol, is a method used to transfer large files across the Internet. TCP, or Transmission Control Protocol, is the more widely known and used protocol for file transmission, however, falls short in comparison when it comes to transferring large files at fast speeds.

How does UDP transfer data?

UDP works by gathering data in a UDP packet and adding its own header information to the packet. This data consists of the source and destination ports on which to communicate, the packet length and a checksum. After UDP packets are encapsulated in an IP packet, they’re sent off to their destinations.

Is UDP reliable or unreliable?

UDP does not provide error correction and is therefore an unreliable protocol. In other words, delivery of packets is not guaranteed. UDP datagrams are transmitted without provision for an acknowledgment. Because there is no virtual connection between sender and receiver, UDP is also said to be connectionless.

How would you ensure for reliable data transfer in an applications that runs over UDP?

To ensure reliability, the developer will need to add at the application layer: – Ack functions to help make sure data segments are received. – Sequencing to help order the data segments. – Flow control to help throttle the flow of data.

What is reliable data transfer?

Reliable data transfer protocols (RDT, RDP) are algorithmic measures to provide assurances of the reliable transfer of data across a network that may be subject to data loss and/or corruption.

How can you make UDP more reliable?

One way could be to use Reliable UDP(RUDP or RDP). The idea is, the sender sends all packets as normal UDP packets and the receiver indexes all the packets. Once all the packets are transmitted, the receiver sends a lists of packet indexes that it did not receive. This can make UDP reliable.

What is the best protocol for transferring a large database?

When you are looking at how to transfer large files, or need to meet enterprise-level needs, I recommend using a program that uses the File Transfer Protocol (FTP) with an appropriate level of encryption (typically SSL/TLS).

How does UDP work over the internet?

UDP is structured as datagrams. When IP delivers a UDP datagram, the host checks the port number and delivers the data to the corresponding application. In this way, UDP provides simple multiplexing over IP to allow a host to send and receive data on multiple distinct ports.

How do you implement reliable transmission in UDP protocol?

In order to ensure quality, it extends UDP by means of adding the following features:

1. Acknowledgment of received packets.
2. Windowing and flow control.
3. Retransmission of lost packets.
4. Over buffering (Faster than real-time streaming)

Why UDP is not a reliable protocol for data communication?

UDP is a connectionless and unreliable protocol. UDP does not do flow control, error control or retransmission of a bad segment. UDP is faster than TCP.