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Which one of the following options describes the protocol and port that is used by DNS?

Posted by: Pdfprep Category: 210-250 Tags: , , Post Date: November 9, 2020

Which one of the following options describes the protocol and port that is used by DNS?
A . TCP 53
B . UDP 53
C . UDP 53 and TCP 53
D . any registered port

Answer: C

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