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Baseline - Binary Representation

Total questions: 30

Worksheet time: 19mins

Name
Class
Date
1.

Convert the binary number 1010 to decimal.

a)

8

b)

10

c)

9

d)

7

2.
What is 54 in binary
a)
110110
b)
11011000
c)
10011101
d)
1111
3.
00010111 + 01001100 =
a)
1100011
b)
11100011
c)
1110001
d)
1111011
4.

Which one is correct for 1 Terabyte?

a)

1024 Kilobytes

b)

1024 Gigabytes

c)

1024 Megabytes

5.
What is 127 in binary
a)
1111111
b)
10000000
c)
11011111
d)
11000010
6.
How does increasing colour depth affect an image file?
a)
Increases number of colours in image
b)
Increases resolution of image
c)
Increases image width
d)
Decreases metadata for an image 
7.
The ASCII code for a letter A is 01000001 what is the code for a C
a)
01000011
b)
01100001
c)
11000011
d)
01001001
8.

01100001 in binary is_______ in denary

a)

98

b)

97

c)

99

d)

none of the answers!

9.

63 in denary is _______ in binary

a)

00111111

b)

01000000

c)

00011111

d)

01010101

10.

01111111 in binary is _______ in denary

a)

127

b)

128

c)

1111111

d)

all of the above

11.

1024 Mebibyte equals

a)

1 KibiByte

b)

1 Gibibyte

c)

1 Tebibyte

d)

1 bit

12.

Sandra bought a flash disk that is 2 GB. She has files on her computer worth 904392 KB. Will she be able to store all of them on her new flash disk?

a)

Yes

b)

No

13.

What digits are part of the binary number system?

a)

0-9

b)

0-F

c)

0 and 1

d)

1-9

14.

Convert the binary number 1001 to decimal.

a)

4

b)

5

c)

9

d)

11

15.

Convert the binary number 1110 to decimal.

a)

3

b)

10

c)

15

d)

14

16.

Convert the binary number 1010 to decimal.

a)

8

b)

10

c)

9

d)

7

17.

Convert the decimal number 4 to binary.

a)

1000

b)

0101

c)

0010

d)

0100

18.

Convert the decimal number 14 to binary.

a)

1110

b)

1100

c)

1011

d)

0101

19.

Add the binary numbers 0011 and 0001

a)

0100

b)

1001

c)

0110

d)

0010

20.

What can a bit hold?

a)

1 and 0

b)

1 or 0

21.

How many bits are in a byte?

a)

4

b)

2

c)

8

d)

10

22.

How many bits are in a nibble?

a)

8

b)

4

c)

2

d)

10

23.

How many bytes are in a kilobyte?

a)

1024

b)

100

c)

1234

d)

128

24.
Which of following are not normally written as binary numbers?
a)
MAC address
b)
Logic gate inputs
c)
Machine code
25.
Which does not affect playback quality of a sound file?
a)
Amplitude
b)
Bit rate
c)
Sample frequency
d)
Sample resolution
26.
What is the biggest number that can be stored as 8 bits?
a)
255
b)
256
c)
8
d)
16
27.
How many kilobytes are in a gigabyte
a)
1024
b)
210
c)
220
d)
10
28.
Decimal 53 can be written in binary as
a)
110101
b)
110001
c)
111000
d)
111110
29.
In binary, 11 + 11 =
a)
110
b)
111
c)
22
d)
100
30.
The ASCII code for a letter A is 01000001 what is the code for a C
a)
01000011
b)
01100001
c)
11000011
d)
01001001

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