Why DNS use both TCP and UDP ports. And for which purpose
it uses TCP and UDP.

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Why DNS use both TCP and UDP ports. And for which purpose it uses TCP and UDP...

Answer / p.narayana

TCP(transmission control protocal) IS CONNECTION ORIENTED PROTOCAL,TCP IS RELIABLE,TCP IS GURANTED DELIVARY protocal ,TCP PROTOCAL NO-6.
UDP(userdatagram protocal) THIS IS CONNECTION LESS PROTOCAL,UDP IS UNRELIABLE,UDP IS NON GURANTED DELIVARY,PROTOCAL NO-17

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Why DNS use both TCP and UDP ports. And for which purpose it uses TCP and UDP...

Answer / baraka mwakilima

TCP is a connection-oriented protocol and it requires data
to be consistent at the destination and UDP is connection-
less protocol and doesn't require data to be consistent or
don't need a connection to be established with host for
consistency of data.

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