Question 1

What is the correct syntax for a 'while' loop in Python?

Accepted Answer

while condition:

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condition while:

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do while condition:

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for condition:

Question 2

How does a 'while' loop differ from a 'for' loop in programming?

Accepted Answer

A 'while' loop is used when the number of iterations is unknown, while a 'for' loop is used when the number of iterations is known.

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A 'while' loop always executes at least once, while a 'for' loop may not execute at all.

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A 'while' loop requires a counter variable like 'for' loop.

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A 'for' loop is written as 'while' loop in reverse.

Question 3

What is the purpose of the 'break' statement in a 'while' loop?

Accepted Answer

To terminate the loop and exit it immediately.

Answer

To skip an iteration and continue with the next one.

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To restart the loop from the beginning.

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To print a value and then continue with the loop.

Question 4

What does the 'continue' statement do in a 'while' loop?

Accepted Answer

It skips the current iteration and continues with the next one.

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It halts the loop until a condition is met.

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It terminates the loop immediately.

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It restarts the loop from the beginning.

Question 5

What is an infinite loop in programming?

Accepted Answer

An infinite loop is a loop that continues to execute without a way to stop or exit.

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A loop that prints an error message and stops.

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A loop that only executes a set number of times.

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A loop that runs very slowly due to complex calculations.

Question 6

What does the 'else' statement do in relation to a 'while' loop in Python?

Accepted Answer

The 'else' statement is executed when the condition of the 'while' loop becomes false.

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The 'else' statement is used to skip the 'while' loop entirely.

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The 'else' statement is executed before the 'while' loop starts.

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The 'else' statement is optional and not related to the 'while' loop.

Question 7

When using a 'while' loop in programming, what happens if the loop condition is initially false?

Accepted Answer

The statements inside the loop will never execute.

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The loop will skip the condition and execute indefinitely.

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The loop will execute once before termination.

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The loop will print an error message and stop.

Question 8

In Python, what does the 'pass' statement do when used inside a 'while' loop?

Accepted Answer

The 'pass' statement acts as a placeholder and does nothing, allowing the loop to continue executing.

Answer

The 'pass' statement checks the loop condition before proceeding.

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The 'pass' statement ends the loop immediately.

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The 'pass' statement skips the current iteration and moves to the next one.

Question 9

What is the key difference between a 'while' loop and a 'do-while' loop in programming?

Accepted Answer

A 'while' loop checks the condition before entering the loop, while a 'do-while' loop checks the condition after executing the loop block.

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A 'while' loop requires an increment or decrement statement, while a 'do-while' loop does not.

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A 'do-while' loop can only be used with numeric data types, unlike a 'while' loop.

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A 'while' loop executes the loop block at least once, while a 'do-while' loop may not execute at all.

Question 10

What is the result of the following 'while' loop in Python? 
x = 1 
while x < 5:     print(x)     x += 1

Accepted Answer

It will print numbers 1, 2, 3, 4.

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It will print number 5 only.

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It will print numbers 1, 3, 5.

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It will print an error message.

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