Question

1. What is the difference between TCP and UDP terms of connection overhead and reliability?

Answer 1

TCP in the sense transmission control protocol and udp means user datagram protocol

protocol is nothing but it follow set of rules

these are used for the how data can be transfer over the network.

tcp is connection oriented protocol which means it require connection both sides for example if some one sent message to other person  during the transmission if any packets are missing they can re transmit if  what are missing

for example the data contain 4 packets  if 3 packets are successfully transmitted 1 packet will re transmit during the tcp because it was connection oriented.

while coming to UDP.it was connection less protocol because it can't re transmit the if the data will be miss.for example while talking with other person if based on some network issue the data cannot reach to the person.if we used tcp the data can be same sent all data need to reach the other person.so the other person don't know when he get the data so during this situation we used udp and live streaming which are like recorded videos udp can be used

this is the main difference between both so based on that tcp is reliable and udp is not reliable

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