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Which of the following is a correct description of lossless compression?

easy📝 Conceptual Q12 of 15
Intro to Computing - How Data is Represented
Which of the following is a correct description of lossless compression?
AIt removes some data permanently to reduce size
BIt compresses data without losing any original information
CIt changes file format to a different type
DIt only works on images, not text
Step-by-Step Solution
Solution:

  1. Step 1: Define lossless compression

    Lossless compression reduces size but keeps all original data intact.

  2. Step 2: Match definitions to options

    It compresses data without losing any original information correctly describes lossless compression as no data loss.

  3. Final Answer:

    It compresses data without losing any original information -> Option B

  4. Quick Check:

    Lossless = no data lost [OK]
Quick Trick: Lossless means no data is lost during compression [OK]
Common Mistakes:
  • Confusing lossless with lossy compression
  • Thinking lossless deletes data
  • Believing lossless only works on images

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