what is ports used for DNS service and which protocol ?

Question

Mohamed Abe Alfattah Abd Alazeem LASHIN · Answer

DNS use port53 , UDP for query and TCP for zone transfer

Syed Asgar Mahmood Zaidi · Answer

DNS Uses Port53 of TCP and UDP both

It Uses a Reliable Connection for DNS Replication update and for reliable connection is uses TCP otherwise UDP.

Athanassios Staveris-Polykalas · Answer

UDP protocol port53

Abdul Azeem · Answer

DNS primarily uses User Datagram Protocol (UDP) on port number53.
Transmission Control Protocol (TCP) is used when response data size exceeds512 bytes(zone transfers).

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what is ports used for DNS service and which protocol ?

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