Binary - Assessment Test - 1- Year 8

What does the word 'bit' mean in Computing? [Two options are correct]

• Very small piece

• Binary digit

• 0 or 1

• A sequence of 0s and 1s

Which of the following would you characterise as 'binary'? (Two answers are correct)

• 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? For example: with 2 binary digits we can have 2² = 4 different sequences.

• 3

• 6

• 8

• 9

What is the size or length of this sequence of binary digits: 101?

• 2 bits

• 3 bits

• 5

• 101

4 bits can hold decimal numbers between:

• 0 and 7

• 0 and 15

• 0 and 63

• 0 and 31

Answer explanation

4 bits can hold decimal numbers only between 0 and 15.

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

• All of the above

Which of the following binary numbers is equivalent to decimal 4? For example: use table :

8 4 2 1

decimal number 2 in binary is= 0 0 1 0

• 10

• 0100

• 1010

• 1111

Which of the following binary numbers is equivalent to decimal 9? (There are two correct answers)

• 101

• 1001

• 1010

• 001001

Which of the following binary numbers is equivalent to decimal 27?

• 11001

• 10111

• 11011

• 11111