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Spread spectrum is used for

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Spread spectrum is used for

(a) Encrypting signal

(b) Hiding signal

(c) Encrypting & Hiding signal

(d) None of the mentioned

The question was posed to me in an online quiz.

Question is taken from Quantization in division Source Coding of Digital Communications

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Right choice is (c) Encrypting & Hiding signal

The explanation: Spread spectrum is used for hiding and encrypting signals.

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