What is the purpose of a pointer to an array in C?

The purpose of a pointer to an array in C is to store the memory address of the first element of the array.

The purpose of a pointer to an array in C is to store the value of the first element of the array.

A pointer to an array in C is used to access elements in the middle of the array.

A pointer to an array in C is used to allocate memory for the array.

What is the purpose of a void pointer in C?

The purpose of a void pointer in C is to provide a generic way to work with different data types.

The purpose of a void pointer in C is to allocate memory for a specific data type.

The purpose of a void pointer in C is to convert a data type to another data type.

The purpose of a void pointer in C is to restrict the access to a specific data type.

Which of the following is true about pointer to const in C?

The value being pointed to cannot be modified through the pointer.

The pointer can be reassigned to point to a different memory location.

The pointer can be used to modify the value being pointed to.

The pointer itself cannot be modified.

What is the purpose of a pointer to a pointer in C?

To store the address of another pointer

To access the value of a pointer directly.

To allocate memory for a pointer.

To store the value of another pointer.

Which of the following is true about pointer to pointer in C?

A pointer to a pointer is used to create dynamic data structures.

A pointer to a pointer is not supported in C.

A pointer to a pointer can only be used with integers.

A pointer to a pointer is used to create static data structures.

What is the purpose of a function returning a pointer in C?

To dynamically allocate memory and return the address of the allocated memory to the caller.

To perform mathematical calculations

To print a message on the screen

What is the purpose of the 'sizeof' operator when used with pointers in C?

To determine the size of the pointer variable itself.

To determine the size of the memory block the pointer is pointing to.

To determine the size of the data type the pointer is pointing to.

To determine the size of the memory address the pointer is holding.

What does the 'void' keyword signify when used with pointers in C?

The pointer can point to any type of data.

The pointer does not point to any memory location.

The pointer points to a function.

The pointer points to a memory location with no value.

What is the use of a NULL pointer in C?

To indicate that the pointer is not intended to point to an accessible memory location.

What is the difference between a pointer and a reference in C++?

A pointer can be reassigned to another memory location while a reference cannot.

A pointer is used for arithmetic operations while a reference is not.

A pointer is a data type while a reference is a variable.

There is no difference between a pointer and a reference.

What is the use of the 'sizeof' operator with respect to pointers in C?

The 'sizeof' operator is used to determine the size of the pointer.

The 'sizeof' operator is used to determine the size of the value to which the pointer points.

The 'sizeof' operator is used to determine the size of the memory block allocated by the pointer.

The 'sizeof' operator is used to determine the size of the data type of the pointer.

What is the purpose of a pointer to function in C?

To store the memory address of a function and call it using the pointer.

To perform arithmetic operations on a function

To allocate memory for a function

What is the difference between a pointer and a reference in C++?

A pointer can be reassigned while a reference cannot.

A reference can be reassigned while a pointer cannot.

There is no difference between a pointer and a reference.

A pointer is a variable that holds a memory address, while a reference is a name given to an existing variable.

What is the purpose of a pointer to a structure in C?

A pointer to a structure in C is used to access elements in the structure.

A pointer to a structure in C is used to allocate memory for the structure.

The purpose of a pointer to a structure in C is to store the memory address of the first element of the structure.

The purpose of a pointer to a structure in C is to store the value of the first element of the structure.

What is the use of the 'malloc' function with respect to pointers in C?

The 'malloc' function is used to allocate memory dynamically and returns a pointer to the first byte of the allocated space.

The 'malloc' function is used to determine the size of the pointer.

The 'malloc' function is used to determine the size of the value to which the pointer points.

The 'malloc' function is used to determine the size of the data type of the pointer.

What is the use of the 'new' keyword in relation to pointers in C++?

To allocate memory for a pointer.

What is the use of the 'new' operator in relation to pointers in C++?

The 'new' operator is used to allocate memory on the heap.

The 'new' operator is used to declare a pointer.

The 'new' operator is used to dereference a pointer.

The 'new' operator is used to assign a value to a pointer.

What is the result of adding an integer to a pointer in C?

The pointer is incremented by the integer value.

The integer is added to the value pointed by the pointer.

The pointer is reassigned to a new memory location.

The operation is not allowed in C.

What is the use of the 'calloc' function with respect to pointers in C?

The 'calloc' function is used to allocate memory dynamically and initializes the allocated memory to zero.

The 'calloc' function is used to determine the size of the pointer.

The 'calloc' function is used to determine the size of the value to which the pointer points.

The 'calloc' function is used to determine the size of the data type of the pointer.

What is the difference between a NULL pointer and a void pointer in C?

A NULL pointer points to the address 0, while a void pointer can point to any type of data.

A NULL pointer can point to any type of data, while a void pointer points to the address 0.

Both NULL pointer and void pointer point to the address 0.

Both NULL pointer and void pointer can point to any type of data.

What is the use of the 'delete' keyword in relation to pointers in C++?

To deallocate memory that was previously allocated by 'new'.

What is correct about calloc() function?

Allocates the space for elements of an ARRAY

If the space is insufficient then return NULL pointer

calloc and malloc function is used for

Both static memory allocation and dynamic memory allocation

void * malloc(size_t n) returns

Pointer to n bytes of uninitialized storage

NULL if the request can be satisfied

In function free(p), p is a

Pointer returned by malloc() & calloc()

What is correct about calloc() function?

Allocates the space for elements of an ARRAY

If the space is insufficient then return NULL pointer

calloc and malloc function is used for

Both static memory allocation and dynamic memory allocation

void * malloc(size_t n) returns

Pointer to n bytes of uninitialized storage

NULL if the request can be satisfied

In function free(p), p is a

Pointer returned by malloc() & calloc()

Can you combine the following two statements into one? char *p; p = (char*) malloc(100);

char * p = (char* )malloc(100);

char * p = (char )(malloc*)(100);

Which of the following statements correct about k used in the below statement? char ****k;

k is a pointer to a pointer to a pointer to a pointer to a char

k is a pointer to a pointer to a pointer to a char

k is a pointer to a char pointer

k is a pointer to a pointer to a char

Pointers in C

Authored by ReNiShA S

Computers

12th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is pointer arithmetic in C?

Accessing data stored in pointers

Assigning values to pointers in C

Manipulation of memory addresses using pointers.

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Pointers in C

What is pointer arithmetic in C?

Which operator is used to access the value pointed by a pointer?

What is the size of a pointer variable in C?

What is a null pointer in C?

Which of the following is true about pointer to functions in C?

What is the purpose of a pointer to structure in C?

Which operator is used to access the members of a structure through a pointer?

What is the purpose of a pointer to an array in C?

Which operator is used to access the elements of an array through a pointer?

What happens when a null pointer is dereferenced in C?

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