What is the well-known port address number used by DNS to serve requests?

IT Exam Items RepositoryCategory: CCNA CyberOpsWhat is the well-known port address number used by DNS to serve requests?

What is the well-known port address number used by DNS to serve requests?

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  • 53
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Explanation: Port numbers are used in TCP and UDP communications to differentiate between the various services running on a device. The well-known port number used by DNS is port 53.

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