RLE quiz

What is the main goal of file compression?

• A. Increase image resolution
  

• B. Improve colour depth
  

• C. Reduce file size and save storage space
  

• D. Increase bandwidth usage

Which of the following is a reason for using file compression?

• To increase file size
  

• B. To prevent file access
  

• C. To reduce transmission time
  

• D. To improve text alignment

Which statement best describes lossless compression?

• Some data is permanently removed
  
  

• Original data can be fully reconstructed
  

• Compression ratio is higher than lossy

• Compression cannot be reversed

In which situation is lossy compression most appropriate?

• Compressing legal documents
  

• Archiving raw image files
  

• Storing source code

• Streaming music

Which type of compression is used when exact original data recovery is required?

• Lossy
  

• Lossless
  

• Temporal

• Predictive

Why is lossless compression preferred for text documents?

• Faster download
  

• 
  Data integrity must be preserved
  

• Can handle multimedia

• Supports colour depth

What is a key disadvantage of lossy compression?

• Data cannot be perfectly recovered

• Larger file size

• Only suitable for vector graphics

• Increases bandwidth usage

What type of compression is Run-Length Encoding (RLE)?

• Lossless compression

• Lossy compression

• Spatial compression

• Hybrid compression

What does RLE compress in a file?

• Irregular data patterns

• Repeated sequences of data

• Encrypted information

• Sound frequencies

What is the RLE encoding of the string MMMMMNNNPPP?

• 4,M)(3,N)(3,P)

• (5,M)(3,N)(3,P)

• (3,M)(3,N)(3,P)

• (5,M)(2,N)(4,P)