Data and Signals Questions

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21.

Frequency and period are ______

A

inverse of each other

B

proportional to each other

C

the same

D

none of the above

Correct Answer: A

None.

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22.

_______is the rate of change with respect to time.

A

Amplitude

B

Time

C

Frequency

D

Voltage

Correct Answer: C

None.

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23.

_______ describes the position of the waveform relative to time 0.

A

Frequency

B

Phase

C

Amplitude

D

Voltage

Correct Answer: B

None.

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24.

The _____ of a composite signal is the difference between the highest and the lowest frequencies contained in that signal

A

frequency

B

period

C

bandwidth

D

amplitude

Correct Answer: C

None.

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25.

A(n)_________ signal is a composite analog signal with an infinite bandwidth.

A

digital

B

analog

C

either (a) or (b)

D

neither (a) nor (b)

Correct Answer: A

None.

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26.

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

Correct Answer: A

None.

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27.

. 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

Correct Answer: B

None.

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