Q. Which of the following statements is correct?

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Q. A modem is connected in between a telephone line and a

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Q. A smart modem can dial, hang up and answer incoming calls automatically. Can you tell who provides the appropriate instruction to the modem for this purpose?

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Q. In a synchronous modem, the digital-to-analog converter transmits signal to the

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Q. Which of the following connectivity devices is used to extend a network on a purely mechanical basis?

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Q. Who invented the modem?

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Q. Propagation time is equals to

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Q. Period is the inverse of

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Q. The black and white TV is an example of

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Q. The level of the signal is inversely proportional to the

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Q. The Nyquist formula gives us any signal level while Shannon capacity gives us the

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Q. Increasing the levels of a signal may reduce the

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Q. If signal does not change at all, its frequency is

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Q. A period of 100 ms in microseconds would be equals to

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Q. Analog data refers to information that is

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Q. We send a voice signal from a microphone to a recorder, the transmission is

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Q. The unit that is used to express the state of a signal is

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Q. The data rate depends upon

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Q. Bit rate is measured in

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Q. Periodic analog signals can be classified as

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