# Practice Quiz in Data and Signals Part 2

Online Practice Quiz in Data and Signals part 2 from the book Data Communications and Networking 4th Edition by Behrouz A. Forouzan.

This is the Online Practice Quiz in Data and Signals part 2 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

### Continue Part II of the Online Practice Quiz

#### Quiz in Data and Signals

Question 11. ________ 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. Noise

B. Distortion

C. Attenuation

D. Decibel

Question 12. A _________ sine wave is not useful in data communications; we need to send a _______ signal.

A. single-frequency; composite

B. composite; single-frequency

C. single-frequency; double-frequency

D. none of these

Question 13. Given two sine waves A and B, if the frequency of A is twice that of B, then the period of B is ________ that of A.

A. one-half

B. twice

C. the same as

D. indeterminate from

Question 14. _______ signals can have only a limited number of values.

A. digital

B. analog

C. either (a) or (b)

D. neither (a) nor (b)

Question 15. For a ______ channel, the Nyquist bit rate formula defines the theoretical maximum bit rate.

A. low-pass

B. bandpass

C. noisy

D. noiseless

Question 16. What is the bandwidth of a signal that ranges from 1 MHz to 4 MHz?

A. 1 KHz

B. 3 MHz

C. 4 MHz

D. none of these

Question 17. A periodic signal completes one cycle in 0.001 s. What is the frequency?

A. 1 Hz

B. 100 Hz

C. 1 KHz

D. 1 MHz

Question 18. If the maximum amplitude of a sine wave is 2 V, the minimum amplitude is ________ V.

A. 2

B. 1

C. -2

D. between -2 and 2

Question 19. _________ can impair a signal.

A. Noise

B. Attenuation

C. Distortion

D. All of these

Question 20. The _____ of a composite signal is the difference between the highest and the lowest frequencies contained in that signal.

A. period

B. bandwidth

C. frequency

D. amplitude

### More Practice Quiz in Data and Signals

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

### Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

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