C Pointers MCQ

In C, a pointer is a variable that stores the memory address of another variable. Using pointers, you can directly interact with memory locations, enabling various operations like dynamic memory allocation, array iterations, and function arguments passed by reference.

Let’s dive into the world of pointers in C and assess your comprehension with some multiple choice questions! Each question is followed by the correct answer and an explanation to help reinforce your knowledge.

1. What does a pointer store?

2. Which operator is used to get the address of a variable?

3. Which operator is used to declare a pointer variable?

4. What does the following declaration mean?

int *ptr;

5. What is the output of the following code?

int a = 10;
int *p;
p = &a;
printf("%d", *p);

6. Which keyword is used to allocate dynamic memory in C?

7. What will be the output of the following code segment?

int a = 5, *p = &a;
printf("%d", *p+2);

8. Which function is used to release dynamically allocated memory?

9. What is a NULL pointer?

10. What is a dangling pointer?

Understanding pointers is crucial in C programming as they provide a way to utilize the capabilities of the memory efficiently. We hope this quiz has enhanced your knowledge. Keep practicing and exploring more about pointers!