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Which method requires less redundancy?

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Which method requires less redundancy?

(a) Error detection

(b) Error correction

(c) Error detection & correction

(d) None of the mentioned

I have been asked this question in an interview for job.

I need to ask this question from Link Budget Analysis and Error Control topic in section Communication Link Analysis of Digital Communications

1 Answer

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Best answer
The correct answer is (a) Error detection

Explanation: Error detection requires much simpler decoding equipment and much less redundancy than error correction.

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