Computer Knowledge - MCQ Practice Questions

What happens when you try to access an array element beyond its size in C?

What is the output of: int x = 10; printf("%d", x++); printf("%d", x);

Which of the following is the correct way to pass a string to a function in C?

What is the size of int data type in a 32-bit system?

Which header file is required to use the printf() function?

In C, which operator has the highest precedence?

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

Which of the following correctly declares a pointer to an integer?

What will be printed if char ch = 'A'; printf("%d", ch); is executed?

Which of the following is used to dynamically allocate memory in C?

What will be the output of: char str[] = "Hello"; printf("%c", str[1]);?

Which function is used to compare two strings in C?

What is the output of the following: int x = 5; int *p = &x; printf("%d", *p);?

Which of the following is an invalid identifier in C?

What will be the output of: int x = 5; printf("%d %d", x++, ++x);?

What is the difference between structure and union in C?

Which of the following function declarations is correct for a function that takes no parameters and returns no value?

In C, what is the purpose of the typedef keyword?

In C programming, which of the following is NOT a valid data type?

What will be the output of: int a = 10; int b = 20; int c = a + b; printf("%d", c);?