Big Idea 2 MC Corrections

• Score
• Corrections
  • Question 2
  • Question 21
• Reflection

Score

Corrections

Question 2

1. Which of the following is an advantage of a lossless compression algorithm over a lossy compression algorithm?

My answer: A lossless compression algorithm can guarantee that compressed information is kept secure, while a lossy compression algorithm cannot.

Correct answer: A lossless compression algorithm can guarantee reconstruction of original data, while a lossy compression algorithm cannot.

Notes: PNG uses a compression algorithm which keeps the picture’s original data without information/data being lost. Ultimately, lossy and lossless images use different types of compression algorithms. Using lossy compression can save space but also introduce artifacts or distortions in the image.

Question 21

My answer: Filter by photographer, then filter by year, then sort by year AND Sort by subject, then sort by year, then filter by photographer

Correct answer: Filter by photographer, then filter by year, then sort by year AND Sort by year, then filter by year, then filter by photographer

Notes: The correct sequence of steps should be organizing everything from least to greatest. The sequence I chose would not remove entries without an year, so the information and data in the spreadsheet would be inaccurate.

Reflection

I feel confident about the topics in Big Idea 2 and understand the concepts well. This can be seen through the score I got on the Big Idea 2 quiz. I received a 92% on the quiz and overall feel confident about Big Idea 2 by learning about it in class the past two weeks.