Binary and Data Representation Quiz

What is binary?

• A number system using base 10

• A system using two states: 0 and 1

• A language for computers to communicate

• A method for converting hexadecimal to denary

Why do computers use binary?

• Easier to understand for humans

• Complex number representation

• Reliable and cost-effective to manufacture components

• Compatible with all number systems

What base does the denary number system use?

• Base 2

• Base 10

• Base 8

• Base 16

How many unique digits does the binary system have?

• 1

• 2

• 10

• 16

What hexadecimal digit represents the decimal value 15?

• E

• F

• 9

• A

What is the binary equivalent of the decimal number 89?

• 01011001

• 01100100

• 10010101

• 10111000

What method is commonly used to convert denary to binary?

• Divide-by-three method

• Multiply-by-two method

• Using a bit table

• Add-and-shift method

What is the decimal equivalent of the binary number 01100110?

• 102

• 96

• 110

• 66

What happens in a 1-bit left binary shift?

• Divides the number by 2

• Multiplies the number by 2

• Adds 1 to the number

• Subtracts 1 from the number

What is the result of a 1-bit right binary shift on the number 20?

• 10

• 40

• 5

• 0