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To avoid aliasing

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To avoid aliasing

(a) Reduce the bandwidth

(b) Cut out high frequency

(c) Reduce the bandwidth & Cut out high frequency

(d) None of the mentioned

I had been asked this question in an internship interview.

This interesting question is from Sampling and Quantization topic in section Formatting and Baseband Modulation of Digital Communications

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Correct choice is (c) Reduce the bandwidth & Cut out high frequency

Explanation: To avoid aliasing bandwidth should be reduced and high frequency should be cut out.

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