Questions and Answers
What are the characteristics of an analog signal?
Amplitude, frequency, and phase
Which type of digital-to-analog conversion uses only the amplitudes of the signal to represent 0s and 1s?
Amplitude Shift Keying
In Amplitude Shift Keying, what happens to the frequency as the binary data changes?
The frequency remains the same
What remains unchanged in Phase Shift Keying when representing binary 0s and 1s?
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What does Phase Shift Keying change to represent binary 1?
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What is characterized by its amplitude, frequency, and phase in data communications and networking signal transmission?
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In frequency shift keying, what is varied to represent binary 1 and binary 0?
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What is the basic idea behind pulse-code modulation (PCM)?
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What does bit rate measure in a communication channel?
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What does baud rate refer to in a communications channel?
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How many bits does an analog signal carry in each signal unit if 1000 signal units are sent per second?
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In frequency shift keying, what denotes binary 1 and binary 0?
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'A baud rate is the number of times a signal in a communications channel changes state or varies.' - this statement relates to which concept?
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