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Quizzes
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1
In a frequency-domain plot, the horizontal axis measures the ________.
A)signal amplitude
B)frequency
C)phase
D)time
2
In a time-domain plot, the horizontal axis is a measure of ________.
A)signal amplitude
B)frequency
C)phase
D)time
3
_______ data are continuous and take continuous values.
A)Analog
B)Digital
C)Analog or digital
D)None of the choices are correct
4
_______ data have discrete states and take discrete values.
A)Analog
B)Digital
C)Analog or digital
D)None of the choices are correct
5
_____ signals have an infinite number of values in a time interval.
A)Analog
B)Digital
C)Either analog or digital
D)None of the choices are correct
6
_______ signals can have only a limited number of values in a time interval.
A)Analog
B)Digital
C)Either analog or digital
D)None of the choices are correct
7
Frequency and period are ______.
A)inverse of each other
B)proportional to each other
C)the same
D)are not related
8
________is the rate of change with respect to time.
A)Amplitude
B)Time
C)Frequency
D)Phase
9
_______ describes the position of the waveform relative to time 0.
A)Amplitude
B)Time
C)Frequency
D)Phase
10
A simple sine wave can be represented by one single spike in the _____ domain.
A)amplitude
B)time
C)frequency
D)phase
11
As frequency increases, the period ________.
A)decreases
B)increases
C)remains the same
D)None of the choices are correct
12
________ is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium.
A)Attenuation
B)Distortion
C)Noise
D)Decibel
13
________ is a type of transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal.
A)Attenuation
B)Distortion
C)Noise
D)Decibel
14
________ is a type of transmission impairment in which an outside source such as crosstalk corrupts a signal.
A)Attenuation
B)Distortion
C)Noise
D)Decibel
15
When propagation speed is multiplied by propagation time, we get the ________.
A)throughput
B)wavelength of the signal
C)distortion factor
D)distance a signal or bit has traveled
16
Baseband transmission of a digital signal is possible only if we have a ____ channel.
A)low-pass
B)bandpass
C)low rate
D)high rate
17
If the available channel is a ____ channel, we cannot send a digital signal directly to the channel.
A)low-pass
B)bandpass
C)low rate
D)high rate
18
For a ______ channel, the Nyquist bit rate formula defines the theoretical maximum bit rate.
A)noisy
B)noiseless
C)bandpass
D)low-pass
19
For a ______ channel, we need to use the Shannon capacity to find the maximum bit rate.
A)noisy
B)noiseless
C)bandpass
D)low-pass
20
_________ can impair a signal.
A)Attenuation
B)Distortion
C)Noise
D)All of the choices are correct
21
The _________ product defines the number of bits that can fill the link.
A)bandwidth-period
B)frequency-amplitude
C)bandwidth-delay
D)delay-amplitude





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