Year 10 Data Representation Quiz

What is the base of the binary number system?

• 2

• 10

• 8

• 16

What does a logical left shift do to a binary number?

• Halves the value

• Doubles the value

• Increases by 1

• Reverses the number

How many bits are in a byte?

• 4

• 8

• 16

• 32

What is the hexadecimal representation of the decimal number 10?

• B

• A

• C

• D

Which of the following is a method to represent negative binary numbers?

• One's complement

• Two's complement

• Hexadecimal conversion

• Binary addition

What is the maximum number of characters ASCII can represent?

• 128

• 512

• 1024

• 256

What is the purpose of data compression?

• Encrypt data

• Reduce file size

• Change file format

• Increase file size

Which of the following is an example of lossy compression?

• .txt

• .png

• .mp3

• .zip

What is the term for the number of bits used to represent the color of a pixel?

• Pixel density

• Color depth

• Bit rate

• Resolution

How many bits are in a Kibibyte?

• 2048

• 1024

• 512

• 256