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What is DNS and which port number is used by DNS?
Answer:
The Domain Name System (DNS) is used to resolve human-readable hostnames like www.golbalguideline.com into machine-readable IP addresses like 69.173.221.64.
DNS servers use UDP port 53 but DNS queries can also use TCP port 53 if the former is not accepted.
DNS servers use UDP port 53 but DNS queries can also use TCP port 53 if the former is not accepted.
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