C Programming - MCQ Practice Questions

What is the behavior of this code? int i = 0; while(1) { i++; if(i > 5) break; }

Consider the code: int x = 5; if(x > 3) if(x > 10) printf("A"); else printf("B"); Which statement best describes the output?

What does the following code segment accomplish? int i = 0; while(i < 5) { if(i == 2) { i++; continue; } printf("%d ", i); i++; }

Which of the following is a valid use of the switch statement in C?

Analyze: What is printed by this code? for(int i = 1; i <= 3; i++) { for(int j = 1; j <= i; j++) { printf("%d", i); } printf(" "); }

What happens when you use break in a nested loop structure?

Consider the code: int x = 0; while(1) { if(++x > 3) break; printf("%d ", x); } What is the output?

What is the key distinction between if-else and switch statements in terms of evaluation?

What does the following code segment do? int i = 0; do { printf("%d ", i); } while(++i < 3);

Consider: switch(x) { case 1: case 2: case 3: printf("A"); break; default: printf("B"); } What advantage does stacking cases provide?

What does continue do in a for loop with multiple statements in body?

What is the output of the following code? int x = 5; if(x > 3) if(x < 10) printf("Pass"); else printf("Fail");

What is the output? int x = 10; while(x-- > 5) { printf("%d ", x); }

Which of the following statements about switch case is TRUE?

What will this code output? for(int i = 1; i <= 3; i++) { for(int j = 1; j <= i; j++) { printf("%d", j); } printf("\n"); }

How many times will the loop execute? int i = 0; while(i++ < 5) { printf("%d ", i); }

What will be the output of this code? int n = 5; switch(n) { case 4: printf("Four"); case 5: printf("Five"); case 6: printf("Six"); break; default: printf("Other"); }

Which control structure would be most efficient to validate if a number is within one of several specific values?

In C programming, what is the difference between break in a loop and break in a switch statement?

What is the output of this code? char ch = 'B'; switch(ch) { case 'A': case 'B': case 'C': printf("Vowel"); break; default: printf("Consonant"); }