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IEs 2018- Computer Networks

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Which of the following statements is correct in respect of TCP and UDP protocols?
(a) TCP is connection-oriented, whereas UDP is connectionless
(b) TCP is connectionless, whereas UDP is connection-oriented
(c) Both are connectionless
(d) Both are connection-oriented

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option a is correct

in tcp/ip protocol suite the fourth layer is transport layer.it is process to process communication not node to node.it uses two protocols for communication.

1)udp

2)tcp

udp means user datagram protocol it is unreliable and connection less protocol it is used to send short messages where reliability is not reqired.

tcp is a connection oriented protocol before transmit the segments first establish the connection between source and destination then transfer data after that release the connection all these done by using three way hand shaking protocol.
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