Computing Checkpoint - May 2025

What is the binary representation of the decimal number 5?

• 101

• 110

• 111

• 100

In the binary number 1101, what does the rightmost bit represent?

• 2^0

• 2^1

• 2^2

• 2^3

Why is understanding binary representation important in technology?

• It is the foundation of all modern computing systems.

• It is used only in data storage.

• It is only relevant for computer programming.

• It is not essential for digital communications.

Which two digits are used in binary numbers? (1 mark)

• 0 and 1

• 1 and 2

• 2 and 3

• 0 and 2

Select the correct base of the binary number system. (1 mark)

• Base 2

• Base 8

• Base 10

• Base 16

What is the binary equivalent of the denary number 9? (1 mark)

• 1000

• 1001

• 1010

• 1100

What is the decimal equivalent of the binary number 1010? (1 mark)

• 14

• 8

• 10

• 12

What number does the binary 1101 represent in denary? (1 mark)

• 11

• 12

• 13

• 14

What is one of the key features of spreadsheets that allows users to perform calculations and analyse data efficiently?

• Formulas and functions

• Data entry

• Graphical design

• Text formatting

Which function would you use in a spreadsheet to find the average of a dataset?

• SUM

• AVERAGE

• COUNT

• MAX