Multiple Choice Questions on Number Data Types for Beginners

📚 Quick Study Guide

• 🔢Integer: Whole numbers, both positive and negative, without any decimal points. Examples: -3, 0, 5.
• 📍Floating-Point Number: Numbers with a decimal point, representing real numbers. Examples: 3.14, -2.5, 0.0.
• ➗Division and Data Types: Be mindful of division operations. Dividing two integers may result in a floating-point number in some languages.
• 🧮Number Systems: Different number systems exist (binary, octal, hexadecimal), each with its own representation.
• ➕Operators: Common operators include addition (+), subtraction (-), multiplication (*), division (/), and modulus (%).
• ❗Type Conversion: Converting between number data types (e.g., integer to float) can lead to data loss or unexpected results.
• ♾️Range: Each data type has a limited range of values it can represent. Exceeding this range can cause errors.

🧪 Practice Quiz

1. What data type is best suited for storing the value 3.14159?
   1. Integer
   2. String
   3. Floating-Point Number
   4. Boolean
2. Which of the following is NOT an integer?
   1. 0
   2. -10
   3. 5.0
   4. 100
3. What happens when you divide two integers and the result is not a whole number (in most programming languages)?
   1. An error occurs
   2. The result is truncated (the decimal part is removed)
   3. The result is rounded to the nearest integer
   4. The result is a floating-point number
4. Which operator returns the remainder of a division?
   1. /
   2. *
   3. %
   4. -
5. Which of the following is a valid representation of a negative integer?
   1. "-5"
   2. -5.0
   3. -5
   4. None of the above
6. What is the process of converting a floating-point number to an integer called?
   1. Floating
   2. Casting
   3. Integering
   4. Numbering
7. Why is it important to choose the correct number data type?
   1. To optimize memory usage
   2. To prevent errors in calculations
   3. To ensure data is represented accurately
   4. All of the above