Question 1

What is the denary number system based on?

Accepted Answer

Base-10

Answer

Base-8

Answer

Base-2

Answer

Base-16

Question 2

What is the binary representation of the denary number 89?

Accepted Answer

01011001

Answer

10011001

Answer

10111001

Answer

01111001

Question 3

How do we convert a denary number to binary using the number line method?

Accepted Answer

By determining how many times the column values fit into the denary number.

Answer

By directly writing the binary numbers

Answer

By multiplying the denary value by the column values

Answer

By subtracting the binary values from the denary number

Question 4

In the binary system, what is the highest digit you can use?

Accepted Answer

1

Answer

0

Answer

2

Answer

9

Question 5

What is the first step in the divide-by-two method for converting denary to binary?

Accepted Answer

Divide the denary number by 2.

Answer

Subtract 1 from the number

Answer

Multiply the number by 2

Answer

Add 1 to the number

Question 6

What do we do when we need to represent numbers larger than 9 in denary?

Accepted Answer

Introduce another column.

Answer

Use fractions

Answer

Use negative numbers

Answer

Stop counting

Question 7

When converting binary to denary, what do you do with the columns that contain a 1?

Accepted Answer

Add their values together.

Answer

Multiply the values together

Answer

Subtract their values from the total

Answer

Ignore them

Question 8

What is the significance of padding binary representations with leading zeros?

Accepted Answer

It ensures the binary number has the correct bit length.

Answer

It is not necessary

Answer

It changes the value of the number

Answer

It makes the number easier to read

Question 9

What is the highest binary number you will need to convert in a typical GCSE exam?

Accepted Answer

8-bit binary numbers.

Answer

16-bit binary numbers

Answer

4-bit binary numbers

Answer

32-bit binary numbers

Question 10

How many bits are in the binary representation of the number 3?

Accepted Answer

2

Answer

1

Answer

4

Answer

3

Related quizzes

Related quizzes