Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R): Assertion (A): Domain Name System (DNS) operates on port 53 for both UDP and TCP communication. Reason (R): DNS queries are always transmitted over TCP for reliability and error correction. In light of the above statements, choose the correct answer from the options given below:

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Computer Science · Computer Networks

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

(A) is true but (R) is false

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Answer 1

Both (A) and (R) are true and (R) is the correct explanation of (A)

Answer 2

Both (A) and (R) are true but (R) is not the correct explanation of (A)

Answer 3

(A) is true but (R) is false

Answer 4

(A) is false but (R) is true

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