Why is collaboration crucial when developing computing innovations?

• It reduces the time needed to develop solutions.

• It offers additional opportunities to find solutions.

• It increases the cost of development.

• It limits the number of perspectives.

Answer explanation

Collaboration is crucial when developing computing innovations because it offers additional opportunities to find solutions.

What should be investigated to understand the purpose of a program?

• The hardware specifications.

• The user interface design.

• The situation, context, or task.

• The marketing strategy.

Answer explanation

To understand the purpose of a program, one should investigate the situation, context, or task in which the program is intended to be used. This helps in determining the specific goals and objectives the program aims to achieve.

Which of the following is NOT a data type?

• Char/Strings

• Float/Double

• Boolean

• Array

Answer explanation

The correct choice is 'Array' because it is a data structure, not a data type like Char/Strings, Float/Double, and Boolean.

What are the types of errors that need to be identified and corrected in algorithms and programs?

• Logic, run-time, and syntax errors

• Compilation, linking, and execution errors

• Design, implementation, and testing errors

• User, system, and network errors

Answer explanation

Logic, run-time, and syntax errors are the types of errors that need to be identified and corrected in algorithms and programs.

Which file size is the largest?

• Petabyte

• Gigabyte

• Terabyte

• Megabyte

Answer explanation

The largest file size is Petabyte, which is greater than Gigabyte, Terabyte, and Megabyte.

What is the binary (base 2) equivalent of the decimal (base 10) number 5?

• 101

• 110

• 111

• 100

Answer explanation

To convert decimal 5 to binary, divide by 2: 5/2=2 remainder 1, 2/2=1 remainder 0, 1/2=0 remainder 1. Read remainders in reverse order: 101.

Which of the following best describes a lossy compression algorithm?

• Compression algorithm in which some of the data from the original file is lost.

• Compression algorithm in which file size is reduced without any quality loss.

• Compression algorithm that increases the file size.

• Compression algorithm that does not change the file size.

Answer explanation

Compression algorithm in which some of the data from the original file is lost.

Which of the following is an example of a data type?

• Integer

• Function

• Loop

• Algorithm

Answer explanation

The correct choice is 'Integer' because it is an example of a data type, while the other options are related to functions, loops, and algorithms.

Match the following descriptions with their corresponding terms:

• 4 in order of operations in mathematics

• Multiplication/Division

• 2 in order of operations in mathematics

• Exponents

• 1 in order of operations in mathematics

• Parentheses

• 3 in order of operations in mathematics

• Addition/Subtraction

What is the purpose of the MOD operator in mathematical expressions?

• To find the remainder of a division operation

• To multiply two numbers

• To add two numbers

• To subtract one number from another

Answer explanation

To find the remainder of a division operation