Digital Data and Compression Quiz

What is an example of digital data?

• A printed book

• A handwritten letter

• A JPEG image

• A spoken conversation

Which of the following is NOT a type of digital data?

• Text

• Image

• Soundwave

• Video

How do computers store and process real-world data?

• By converting it to binary code

• By storing it as physical objects

• By using human-readable formats

• By converting it into analog signals

Which device is primarily used to collect visual data for a computer?

• Keyboard

• Camera

• Mouse

• Microphone

What is binary encoding in computers?

• Converting images into pixels

• Storing data as text files

• Converting real-world data into binary digits (0s and 1s)

• Sending data over the internet

Which of these is a file format for an image?

• .docx

• .mp4

• .jpg

• .pdf

Which of the following is an example of lossy compression?

• ZIP files

• PNG images

• MP3 audio files

• PNG images

What does lossless compression do?

• It reduces the file size without losing any data

• It reduces file size but loses some data

• It increases the quality of the file

• It converts files into a text format

Why is file compression commonly used in digital media?

• To increase the file size

• To make files harder to share

• To reduce file size for easier storage and sharing

• To improve data quality

What is the primary trade-off when compressing a file?

• Speed vs. Quality

• Cost vs. Data Size

• Speed vs. Compression Rate

• Quality vs. File Size