Computer Science Quiz on Data Representation

What is the base of the binary number system?

• 10

• 8

• 2

• 16

Which number system uses digits 0-9 and letters A-F?

• Binary

• Denary

• Hexadecimal

• Octal

What is the maximum value of an 8-bit binary number?

• 64

• 512

• 128

• 255

How many bits are used to represent a pixel in a 24-bit color depth image?

• 32

• 8

• 16

• 24

What does ASCII stand for?

• American Standard Code for Information Interchange

• American Standard Code for Internet Interaction

• Advanced Standard Code for Information Interchange

• Advanced Standard Code for Internet Interaction

Which of the following is a lossy compression method?

• PNG

• JPEG

• ZIP

• GIF

What is the purpose of a logical shift in binary?

• To multiply by 2

• To add two numbers

• To divide by 2

• To shift bits left or right

What is the denary equivalent of the binary number 1010?

• 10

• 14

• 12

• 8

Which character set can represent all languages of the world?

• Binary

• Unicode

• Extended ASCII

• ASCII

What is the effect of increasing the sampling rate in sound recording?

• Decreases file size

• Increases file size

• No effect on file size

• Decreases sound quality