Binary Numbers, Data Compression, and Data Extraction

What is the binary representation of the decimal number 13?

• 1101

• 1011

• 1110

• 1001

Which of the following is a lossless data compression algorithm?

• JPEG

• MP3

• LZ77

• MPEG

How does abstraction help in managing complexity in computer science?

• By hiding unnecessary details

• By increasing the number of variables

• By reducing the need for algorithms

• By eliminating syntax errors

If you were to evaluate solution options for a specific computing problem, which of the following would you consider first?

• The number of users

• The efficiency and effectiveness of each solution

• The color of the user interface

• The size of the development team

What is the primary goal of data compression?

• To increase data security

• To reduce the amount of data storage needed

• To enhance data visualization

• To simplify data analysis

Which of the following binary numbers is equivalent to the decimal number 21?

• 11000

• 10101

• 11111

• 10011

How can knowledge be generated from data?

• By deleting irrelevant data

• By applying algorithms to identify patterns and insights

What impact does gathering data have on individuals?

• Decreases information access

• Improves data accuracy

• Raises privacy concerns

• Reduces data redundancy

Which algorithm would you use to sort a list of numbers efficiently?

• Binary search

• Bubble sort

• Merge sort

• Linear search

When converting the binary number 11011 to decimal, what is the result?

• 25

• 27

• 29

• 23