MCQ BMC-151

What is the output of the below code snippet?

int i = 0;

while (i < 5) {

    if (i == 3) break;

    printf("%d ", i);

    i++;

}

• 0 1 2 4
• 1 2 3 4
• 0 1 2 3
• 0 1 2

In nested loops, when the break statement is encountered in the inner loop, what happens?

• The program terminates completely.
• The outer loop is exited immediately.
• The inner loop is exited, and control goes to the outer loop.
• The inner loop continues to run until its condition is false.

Which of the following is the correct syntax to declare a function prototype for a function func that takes two integers and returns a float?

• float func(int): float;
• float func(int a, int b);

• void func(int, int) return float;
• int func(int, int) -> float;

Given the following code, what will the output be?

void func(int a) {

a = 10;

}

int main() {

int x = 5;

func(x);

printf("%d", x);

}

• 10
• 5.0
• 0
• 5

Which of the following correctly describes the scope of a variable declared inside a function?

• It is accessible only within that function.

• It is accessible throughout the entire program.

• It is accessible in all functions of the same file.

• It is accessible in all files of the project.

What will be the output of this code?

int multiply(int a, int b) {

return a * b;

}

int main() {

int a = 2, b = 3, c = multiply(a++, b++);

printf("%d %d %d", a, b, c);

}

• 1 2 6
• 4 5 8
• 3 4 6
• 2 3 5

Which of the following is NOT a benefit of using a high-level programming language?

• Easier debugging and error handling
• Faster execution speed
• Simplified syntax for complex tasks
• Greater control over system resources

What is the purpose of the linker in compiling a C program?

• To optimize the code for better performance.
• To convert source code into machine code directly.
• To manage memory allocation during runtime.
• The purpose of the linker in compiling a C program is to combine object files and resolve references to create an executable.

What will the following code output if the function main is defined as follows?

int main() {

int result = printf("Hello, World!");

printf("%d", result);

return 0;

}

• Hello, World!13

• Hello, World!12

• 13Hello, World!

• 12Hello, World!

Which of the following is a correct declaration of a constant variable in C?

• • int const num = 5;

• • #define int num 5

• • int num = constant 5;

• • const num int = 5;