
Digital Communication Quiz

Quiz
•
Computers
•
University
•
Easy
VVi O
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50 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What does digital-to-analog conversion involve?
Changing binary data into pulse code
Changing characteristics of an analog signal
Using analog data for digital output
None of the above
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which of the following is not a characteristic of an analog signal?
Amplitude
Phase
Frequency
Bit rate
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the smallest unit of data in digital communication?
Signal element
Data element
Carrier
Phase unit
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A signal element can represent:
Only 1 bit
A byte
One or more bits
Only analog data
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Baud rate refers to:
Bits per second
Signal elements per second
Amplitude per second
Number of frequencies used
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What does the variable L represent in analog transmission?
Signal rate
Bit depth
Number of distinct signal elements
Bandwidth
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the formula for r in the equation S=N/r?
r=2L
r=log2L
r=N×L
r=L
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