Pointer - C Programming MCQ Questions and Answers Page-2 section-1

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11.
What is the result of the expression &variable in C, where variable is a variable of type int?

A. Address of variable

B. Value of variable

C. Size of variable

D. Type of variable

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12.
In C, what is a double pointer (int**)?

A. A pointer to an integer

B. A pointer that can store two addresses

C. A pointer to a pointer

D. A pointer to a double data type

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13.
What is the result of the expression ptr = NULL in C, where ptr is a pointer?

A. Initialize ptr to 0

B. Delete the pointer ptr

C. Set ptr to a random address

D. It's not a valid operation

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14.
In C, what is the purpose of the 'malloc' function?

A. Allocate memory on the stack

B. Allocate memory on the heap

C. Allocate memory for a function

D. Allocate memory for a variable

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15.
What is the result of the expression *NULL in C?

A. Error

B. Null pointer dereference

C. 0

D. Undefined

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16.
In C, what is the purpose of the 'memcpy' function?

A. Copy the contents of one pointer to another

B. Copy the contents of one memory location to another

C. Create a new pointer

D. Swap two pointers

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17.
What is the result of the expression sizeof(char*) in C, assuming a char pointer on a typical system?

A. 4

B. 8

C. 2

D. 1

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18.
In C, how do you declare an array of pointers to integers?

A. int* arr[];

B. arr int*[];

C. int arr*[];

D. int[]* arr;

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19.
What is the purpose of the 'free' function in C when used with pointers?

A. Allocate memory

B. Deallocate memory

C. Create a new pointer

D. Modify the pointer's value

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20.
In C, what is a pointer to a constant value (const int*)?

A. A pointer that cannot be modified

B. A pointer that points to a constant value

C. A constant pointer

D. A pointer to a constant value

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Pointer - C Programming MCQ Questions and Answers

11. What is the result of the expression &variable in C, where variable is a variable of type int?

Answer & Solution

12. In C, what is a double pointer (int**)?

Answer & Solution

13. What is the result of the expression ptr = NULL in C, where ptr is a pointer?

Answer & Solution

14. In C, what is the purpose of the 'malloc' function?

Answer & Solution

15. What is the result of the expression *NULL in C?

Answer & Solution

16. In C, what is the purpose of the 'memcpy' function?

Answer & Solution

17. What is the result of the expression sizeof(char*) in C, assuming a char pointer on a typical system?

Answer & Solution

18. In C, how do you declare an array of pointers to integers?

Answer & Solution

19. What is the purpose of the 'free' function in C when used with pointers?

Answer & Solution

20. In C, what is a pointer to a constant value (const int*)?

Answer & Solution

Read More Section(Pointer)

11.
What is the result of the expression &variable in C, where variable is a variable of type int?

12.
In C, what is a double pointer (int**)?

13.
What is the result of the expression ptr = NULL in C, where ptr is a pointer?

14.
In C, what is the purpose of the 'malloc' function?

15.
What is the result of the expression *NULL in C?

16.
In C, what is the purpose of the 'memcpy' function?

17.
What is the result of the expression sizeof(char*) in C, assuming a char pointer on a typical system?

18.
In C, how do you declare an array of pointers to integers?

19.
What is the purpose of the 'free' function in C when used with pointers?

20.
In C, what is a pointer to a constant value (const int*)?