Exploring While Loops and Iteration

In the context of while loops, what is iteration?

• The process of writing code.

• The process of executing a set of instructions repeatedly.

• The process of debugging code.

• The process of compiling code.

What is a while loop in programming?

• A loop that runs a specific number of times.

• A loop that continues to execute as long as a specified condition is true.

• A loop that executes only once.

• A loop that runs indefinitely without any condition.

Which of the following is a common use of a while loop?

• To execute a block of code a fixed number of times.

• To execute a block of code until a certain condition is met.

• To execute a block of code only if a condition is false.

• To execute a block of code without any condition.

What happens if the condition in a while loop is never false?

• The loop will execute once and then stop.

• The loop will execute indefinitely, causing an infinite loop.

• The loop will not execute at all.

• The loop will execute twice and then stop.

Identify the loop condition in the following code snippet: `while (x < 10) { // code }`

• x

• 10

• x < 10

• while

Consider the following code: `while (n > 0) { n--; }`. What is the purpose of `n--` in this loop?

• To increase the value of n.

• To decrease the value of n, eventually making the condition false.

• To keep the value of n constant.

• To reset the value of n to zero.

How can you prevent a while loop from becoming an infinite loop?

• By ensuring the loop condition is always true.

• By ensuring the loop condition will eventually become false.

• By removing the loop condition.

• By using a different type of loop.

What is the role of a loop counter in a while loop?

• To keep track of the number of times the loop has executed.

• To increase the speed of the loop.

• To decrease the complexity of the loop.

• To ensure the loop executes only once.

What is the difference between a while loop and a for loop?

• A while loop is used for a known number of iterations, while a for loop is used for an unknown number of iterations.

• A while loop is used for an unknown number of iterations, while a for loop is used for a known number of iterations.

• A while loop is faster than a for loop.

• A while loop is more complex than a for loop.

In which scenario would you choose a while loop over a for loop?

• When you know the exact number of iterations needed.

• When the number of iterations is unknown and depends on a condition.

• When you want to execute the loop only once.

• When you want to execute the loop in reverse.