Quiz: Bits, Bytes, and Binary

What is binary data?

• Data made of text only

• Data that uses numbers and letters

• Data represented using only 0s and 1s

• Data stored in cloud servers

What is the primary function of transistors in a computer?

• To display images on screen

• To store files permanently

• To switch electronic signals on and off

• To connect computers to the internet

What is a bit?

• A type of software

• A storage device

• The smallest unit of digital data

• A coding language

How many bits are in a byte?

• 4

• 8

• 10

• 1024

What does a kilobyte usually represent?

• 100 bytes

• 500 bytes

• 10 bytes

• 1,024 bytes

6. What comes after kilobyte in increasing size?

• Megabyte

• Gigabyte

• Terabyte

• Byte

What is file compression used for?

• To delete unwanted files

• To speed up the processor

• To reduce file size

• To encrypt files

What is an algorithm?

• A computer virus

• A list of file names

• A set of step-by-step instructions to solve a problem

• A music format

What does lossless compression mean?

• The file cannot be opened again

• Some data is permanently removed

• No data is lost after compression

• The file loses color or sound quality

What does lossy compression do?

• Keeps all the original data

• Compresses files without changing anything

• Deletes the file

• Removes some data to reduce file size