
Digital Tech - Data Representation Quiz
Quiz
•
Computers
•
11th Grade
•
Practice Problem
•
Hard
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100 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an example of analogue data?
Binary digits
Grooves in a vinyl record
Digital sound files
Computer code
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do computers represent data?
As continuous vibrations
As grooves on a disk
As a combination of 1 or 0 numbers
As sound waves
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process called that converts analogue sound to digital data?
Encoding
Sampling
Decoding
Transmitting
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT an example of analogue data?
Sound waves
Grooves on vinyl records
Binary digits
Acoustic instrument sounds
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the blue line represent in the graph?
Digital samples
Analogue sound wave
Sampling frequency
Compressed data
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical sampling frequency used on most audio CDs?
22,000 times per second
33,000 times per second
44,000 times per second
55,000 times per second
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to audio files when they are compressed?
Data is added to increase the size
Data is removed to reduce the size
Sampling frequency is increased
Analogue data is converted to digital
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