CNET 224 Chapter 3

The _________ product defines the number of bits that can fill the link. A) bandwidth-period B) frequency-amplitude C) bandwidth-delay D) delay-amplitude

C) bandwidth-delay

A simple sine wave can be represented by one single spike in the _____ domain. A) amplitude B) time C) frequency D) phase

C) frequency

_________ can impair a signal. A) Attenuation B) Distortion C) Noise D) All of the choices are correct.

D) All of the choices are correct.

_______ describes the position of the waveform relative to time 0. A) Amplitude B) Time C) Frequency D) Phase

D) Phase

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

D) distance a signal or bit has traveled

In a time-domain plot, the horizontal axis is a measure of ________. A) signal amplitude B) frequency C) phase D) time

D) time

________ 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

A) Attenuation

_______ data are continuous and take continuous values. A) analog B) digital C) analog or digital D) None of the choices are correct.

A) analog

As frequency increases, the period ________. A) decreases B) increases C) remains the same D) None of the choices are correct.

A) decreases

Frequency and period are ______. A) inverse of each other B) proportional to each other C) the same D) are not related

A) inverse of each other

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

A) low-pass

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

A) noisy

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

B) bandpass

_____ 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.

A) Analog

_______ 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.

B) Digital

________ 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

B) Distortion

_______ data have discrete states and take discrete values. A) analog B) digital C) analog or digital D) None of the choices are correct.

B) digital

In a frequency-domain plot, the horizontal axis measures the ________. A) signal amplitude B) frequency C) phase D) time

B) frequency

For a ______ channel, the Nyquist bit rate formula defines the theoretical maximum bit rate. A) noisy B) noiseless C) bandpass D) low-pass

B) noiseless

________ is the rate of change with respect to time. A) Amplitude B) Time C) Frequency D) Phase

C) Frequency

_______ 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

C) Noise