Understanding Data Representation Quiz
Authored by Gemma Smith
Computers
9th Grade
Used 1+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the smallest unit of data in a computer?
Byte
Bit
Kilobyte
Megabyte
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many bits are there in a byte?
4
8
16
32
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Convert the binary number 1010 to decimal.
5
10
12
15
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the hexadecimal representation of the decimal number 255?
FF
1F
2F
F0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a character encoding standard?
ASCII
JPEG
MP3
PNG
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many colours can be represented with 8 bits per pixel?
16
64
256
512
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for reducing the file size of an image by removing some data?
Lossless compression
Lossy compression
Data encryption
Data redundancy
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