Free Printable Year 9 Test CS

1.

What is binary also known as?

a)

Base 1

b)

Base 2

c)

Base 3

d)

Base 10

2.

What are the number choices in binary?

a)

0 and 1

b)

0, 1 and 2

c)

0 to 2

d)

0 to 9

3.

What are the first 6 powers in binary?

a)

0, 2, 4, 8, 12, 32

b)

1, 2, 4, 8, 16, 31

c)

1, 2, 6, 8, 16, 32

d)

1, 2, 4, 8, 16, 32

4.

What is 23 in binary

a)

10101

b)

10110

c)

10111

d)

11000

5.

What is 1001 binary number in denary?

a)

8

b)

9

c)

10

d)

11

6.

What is 111111 in denary?

a)

60

b)

61

c)

62

d)

63

7.

What is the binary addition rule for 1 + 1 + 1?

a)

0

b)

1

c)

0 carry 1

d)

1 carry 1

8.

what is 0 + 1 in binary?

a)

0

b)

10

c)

11

d)

1

9.

What is 1 + 1 in binary?

a)

10

b)

01

c)

11

d)

2

10.

What is 111 +110?

a)

1100

b)

1101

c)

1110

d)

1111

11.

Denary is numbers humans use in every day life

a)

True

b)

False

12.

Binary uses 1’s & 0’s to represent data

a)

True

b)

False

13.

What is 12 in binary?

a)

0010

b)

1010

c)

1100

d)

1111

14.

What is 3 in binary?

a)

0100

b)

0001

c)

0101

d)

0011

15.

Convert 128 to binary

a)

10000000

b)

01111110

c)

10000001

d)

11001100

16.

Convert 11111111 to decimal

a)

255

b)

245

c)

235

d)

225

17.

Calculate the binary addition:
01
11
Use binary addition rules + whiteboards!

a)

101

b)

11

c)

111

d)

100

18.

Calculate the binary addition:
1001
1011
Use binary addition rules + whiteboards!

a)

10100

b)

010101

c)

011100

d)

01010011

19.

Calculate the binary addition:
1111
1011
Use binary addition rules + whiteboards!

a)

110101

b)

11110

c)

11011

d)

11010

20.

Calculate the binary addition:
01111
11011
Use binary addition rules + whiteboards!

a)

1010100

b)

101110

c)

111010

d)

101010

21.

Calculate the binary addition:
01111
11011
Use binary addition rules + whiteboards!

a)

101010

b)

11101001

c)

11001011

d)

1010101111

22.

What is B in denary

a)

10

b)

11

c)

12

d)

13

23.

What is E in denary

a)

10

b)

12

c)

14

d)

16

24.

12 in denary is what in Hex?

a)

A

b)

B

c)

C

d)

D

25.

15 in denary is what in Hex?

a)

A

b)

B

c)

E

d)

F

26.

What is 1011 in hex

a)

B

b)

C

c)

D

d)

E

27.

What is D in binary

a)

1111

b)

1101

c)

1011

d)

0111

28.

How many bits make a byte?

a)

2

b)

4

c)

8

d)

16

29.

Convert the binary number 01010101 to Hex

a)

44

b)

55

c)

66

d)

77

30.

Convert the binary number 11000011 to Hex

a)

11

b)

A2

c)

C3

d)

D4

31.

Which number system are these examples of?
2A 7F 1C

a)

Binary

b)

Denary

c)

Hexadecimal

32.

Which of these are hexadecimal digits?

a)

F

b)

G

c)

6

d)

0

e)

H

33.

Computers store all data using...

a)

Binary

b)

Hexadecimal

c)

Denary

d)

Octal

34.

Which of the following units is the smallest in terms of size?

Kilobyte, Megabyte,Nibble.

a)

Kilobyte

b)

Megabyte

c)

Nibble

35.

How many bits are in a byte?

a)

2

b)

4

c)

6

d)

8

36.

Smallest to largest, which of the below answers is correct?

a)

bit, nibble,byte,megabyte,kilobyte,terabyte,petabyte

b)

nibble, bit,byte,kilobyte,megabyte,terabyte,petabyte

c)

bit,byte,nibble,kilobyte,megabyte,petabyte,terabyte

d)

bit, nibble,byte,kilobyte,megabyte,terabyte,petabyte

37.

How many nibbles are there in a byte?

a)

1

b)

2

c)

4

d)

8

38.

A computer uses ______________ for storing data and instructions.

a)

Memory

b)

Keyboard

c)

Printer

d)

Speaker

39.

The smallest unit for measuring Memory in computer is

a)

Bits

b)

Byte

c)

KiloByte

d)

MegaByte

40.

Which of the following is not the characteristics of RAM?

a)

RAM is read/write memory

b)

RAM holds data and instruction on which we are currently working

c)

RAM is Non-Volatile i.e, Permanent

d)

The amount of RAM in computer affects the number of programs a computer can run at the same time.

41.

What is RAM?

a)

Read Only Memory

b)

Random Access Memory

c)

Read Any Memory

42.

What is the full form of GB?

a)

Gate Byte

b)

Giga Byte

c)

Giga Bit

43.

The part of computer which helps to store information

a)

Speed

b)

Accuracy

c)

Memory

d)

Arithemetic

Year 9 Test CS

Total questions: 43

Worksheet time: 49mins

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