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Q1. | Which of the following sampling frequencies is considered adequate in voice telephony? |

A. | 4 kHz [Wrong Answer] |

B. | 8 kHz [Correct Answer] |

C. | 16 kHz [Wrong Answer] |

D. | 32 kHz [Wrong Answer] |

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Explanation:-
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**Reason (R):** Characteristic impedance of a line is an important parameter.

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