While Loop Iteration Quiz

What is the main purpose of using a `while` loop in Python?

• To repeat a block of code as long as a condition is true

• To execute code only once

• To define a function

• To import a library

What will the following code print? ```python count = 0 while count < 3: print(count) count += 1 ```

• 0 1 2

• 1 2 3

• 0 1 2 3

• 1 2

What will happen if the condition in a `while` loop is always `True`?

• The loop will run forever

• The loop will never run

• The loop will run once

• The loop will cause an error

How many times will the following loop run? ```python x = 5 while x > 0: x -= 1 ```

• 4

• 5

• 6

• 0

What is the output of this code? ```python num = 1 while num < 4: print(num * 2) num += 1 ```

• 2 4 6

• 1 2 3

• 2 3 4

• 2 4 8

What is the value of `total` after this code runs? ```python total = 0 i = 1 while i <= 3: total += i i += 1 ```

• 3

• 6

• 5

• 4

Which of the following is a correct `while` loop to print numbers from 1 to 5?

• ```python i = 1 while i <= 5: print(i) i += 1 ```

• ```python i = 1 while i < 5: print(i) i += 1 ```

• ```python i = 1 while i == 5: print(i) i += 1 ```

• ```python i = 1 while i > 5: print(i) i += 1 ```

What will the following code print? ```python n = 10 while n > 7: print(n) n -= 1 ```

• 10 9 8

• 10 9 8 7

• 7 8 9 10

• 8 9 10

If you want to print the word "Python" five times using a `while` loop, which of the following is correct?

• ```python count = 0 while count < 5: print("Python") count += 1 ```

• ```python count = 1 while count < 5: print("Python") count += 1 ```

• ```python count = 5 while count > 0: print("Python") count -= 1 ```

• Both A and C

What is the output of this code? ```python x = 2 while x < 10: x *= 2 print(x) ```

• 4 8 16

• 2 4 8

• 2 4 8 16

• 4 8