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Loops Interview Questions

MCQ Question 1 of 10

How many times does the loop run in for (int i = 0; i < 10; i++)?

91011Infinite

Which statement about the while loop is true?

It executes at least once.It may never execute if condition is false initially.It always executes exactly once.It executes infinitely.

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

Do-while is faster than while.While loop executes at least once.Do-while loop executes at least once, even if condition is false.Both are identical.

What does the break statement do inside a loop?

Skips the current iterationExits the loop immediatelyEnds the programRepeats the loop

What does the continue statement do inside a loop?

Ends the loopExits the programSkips the current iteration and continues with the next oneRestarts the program

What will be printed?

#include <stdio.h>

int main() {
    for (int i = 1; i <= 3; i++) {
        printf("%d ", i);
    }
    return 0;
}

1 2 30 1 21 2 3 4Infinite

What will be the output?

#include <stdio.h>

int main() {
    int i = 0;
    while (i < 3) {
        printf("Hi ");
        i++;
    }
    return 0;
}

Hi HiHi Hi HiHiInfinite Hi

If an outer loop runs 5 times and an inner loop runs 4 times, how many total iterations occur?

592025

Which of these will create an infinite loop?

for (int i = 0; i < 5; i++)while (1)do { } while (0);for (i = 0; i < 10; i++)

Which loop is best suited when the number of iterations is known in advance?

While loopDo-while loopFor loopInfinite loop