What are TCP and UDP?

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What are TCP and UDP?

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Common factors in TCP and UDP are:

TCP and UDP are the most widely used protocols that are built on the top of the IP protocol.

Both protocols TCP and UDP are used to send bits of data over the Internet, which is also known as ‘packets’.

When packets are transferred using either TCP or UDP, it is sent to an IP address. These packets are traversed through routers to the destination.

The difference between TCP and UDP are enlisted in the below table:


TCP stands for Transmission Control Protocol UDP is stands for User Datagram Protocol or Universal Datagram Protocol

Once the connection is setup, data can be sent bi-directional i.e. TCP is a connection oriented protocol UDP is connectionless, simple protocol. Using UDP, messages are sent as packets

The speed of TCP is slower than UDP UDP is faster compared to TCP

TCP is used for the application where time is not critical part of data transmission UDP is suitable for the applications which require fast transmission of data and time is crucial in this case.

TCP transmission occurs in a sequential manner UDP transmission also occurs in a sequential manner but it does not maintain the same sequence when it reaches the destination

It is heavy weight connection It is lightweight transport layer

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