Python While Loop Quiz (original) (raw)

What does the following Python code do?

Python `

count = 0 while count < 5: print("Count:", count) count += 1 if count == 3: continue print("After Continue")

`

• Prints "Count: 0" to "Count: 4" with "After Continue" after each line.
• Prints "Count: 0" to "Count: 2" with "After Continue" after each line.
• Prints "Count: 0" to "Count: 4" without "After Continue" after "Count: 2"

How can you iterate over the items of a list using a while loop?

• Use the range function with the length of the list.
• Convert the list to a set and iterate over it.
• Use the enumerate function.

In Python, can a while loop be used to iterate over a dictionary directly?

• Only if the dictionary keys are integers.
• Only if the dictionary has a single key.

In Python, how can you emulate the behavior of a break statement inside a while loop without using bre

• Raise a custom exception.

In Python, can a while loop have multiple else blocks?

• Only if the loop has multiple conditions.
• Only if the loop uses nested if statements.

What is the purpose of the assert statement in a while loop?

• To check if a condition is true and raise an error if not.
• To skip the rest of the code in the loop.
• It is not a valid statement in a while loop.

What is the purpose of the else clause in a while loop?

• It always runs after the loop completes.
• It is used to handle exceptions within the loop.
• It runs if the loop encounters an error.
• It runs if the loop completes without encountering a break statement.

How does the while-else construct work in Python?

• It is not a valid construct in Python.
• The else block always runs after the loop.
• The else block runs if the loop encounters an error.
• The else block runs if the loop completes without encountering a break statement.

What is the purpose of the continue statement in a while loop?

• Skips the remaining code in the loop and moves to the next iteration.
• Exits the loop prematurely.
• Breaks out of the loop entirely.

What is the output of the following Python code?

Python `

num = 2 while num < 10: print(num, end=" ") num **= 2

`

• Prints powers of 2 from 2 to 8.
• Prints the square of numbers from 2 to 10.
• Prints numbers in the range [2, 10) with a step of 2.

There are 20 questions to complete.

Take a part in the ongoing discussion