Section 1: while Loop

1. What is a loop in C++?
2. Why do we use loops instead of writing the same statement repeatedly?
3. What is a while loop in C++? Explain its purpose with an example.
4. What is the syntax of a while loop?
5. How does a while loop work? Explain its execution step by step.
6. What is the difference between a while loop and an if statement?
7. What is an infinite loop? Explain why it occurs in a while loop and write a C++ example.
8. What happens if the condition of a while loop is false at the beginning?
9. Why is initialization important in a while loop?
10. What happens if the loop control variable is not updated?
11. How can you use a while loop to repeatedly take input until the user enters 0?
12. What is the difference between a counter-controlled loop and a sentinel-controlled loop? Give an example of each.
13. Can a while loop execute zero times? Explain with an example.
14. Identify three common mistakes students make when writing while loops and explain how to correct them.

Section 2: do-while Loop

1. What is the difference between a while loop and a do-while loop?
2. Why does a do-while loop execute at least once?
3. Can a do-while loop execute when its condition is initially false? Explain with an example.