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MCQ

Q.

The Nyquist theorem specifies the minimum sampling rate to be_______.

A

equal to the lowest frequency of a signal

B

equal to the highest frequency of a signal

C

twice the bandwidth of a signal

D

twice the highest frequency of a signal

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MCQ

1.

In _______ transmission, bits are transmitted over a single wire, one at a time.

A

asynchronous serial

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synchronous serial

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(a) and (b)

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2.

A constellation diagram shows us the __________ of a signal element, particularly when we are using two carriers (one in-phase and one quadrature).

A

amplitude and phase

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amplitude and frequency

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A

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5.

In _____ transmission, the carrier signal is modulated so that its amplitude varies with the changing amplitudes of the modulating signal.

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