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Worksheets8.2 - Data Representation Assessment
Total questions: 22
Worksheet time: 17mins
What does the word ‘bit’ mean in Computing?
Very small piece
Binary digit
A group of 8 0s and 1s
A sequence of 0s and 1s
Which of the following is a binary digit?
2
bit
0
01
Which of the following would you characterise as ‘binary’?
(You can select more than one option.)
A switch
An oven knob
A dice
A coin
Which of the following is a byte?
8
bit bit bit bit bit bit bit bit
01100101
1
How many different sequences of 3 binary digits can there be?
3
6
9
Infinite
8
How many different sequences of 5 binary digits can there be?
5
10
25
32
Infinite
What is the size or length of this sequence of binary digits: 101?
2 bits
3 bits
5
101
Here is a sequence of binary digits:
011000101110010100110100010001110101001110001010101
What could this sequence represent? What could it mean?
A piece of text
A number
A set of instructions
Musical notes
Any piece of information
Which of the following binary numbers is equivalent to decimal 4?
10
100
1010
1111
Which of the following binary numbers is equivalent to decimal 9?
101
1001
1010
10000
Which of the following binary numbers is equivalent to decimal 27?
11001
10111
11011
11111
Which of the following decimal numbers is equivalent to binary 110?
2
6
30
110
Which of the following decimal numbers is equivalent to binary 10011?
19
22
23
10011
Which of the following decimal numbers is equivalent to binary 11100?
14
28
70
320
Which prefix would you use to describe a quantity that is in the billions?
Kilo-
Mega-
Giga-
Tera-
What does the prefix ‘mega-’ stand for?
Thousand
Million
Billion
Trillion
What does the prefix ‘kilo-’ stand for?
Thousand
Million
Billion
Trillion
Select the sizes that are equivalent to 8,000 bits:
(You can select more than one option.)
1,000 bytes
8,000 bytes
64,000 bytes
8 kilobits
Select the sizes that are equivalent to 500MB (megabytes):
(You can select more than one option.)
500Mb (megabits)
0.5kB (kilobytes)
5000,000kB (kilobytes)
0.5GB (gigabytes)
5,000GB (gigabytes)
Fill in the gaps:
Humans use sequences of symbols to ................................................. ................................................. and ............................................ information.
State two examples of coding schemes that we use to represent characters using sequences of symbols?
Name one well-known code used in digital devices that represents every character as a sequence of 7 binary digits?
