Memory Allocation MCQs

Question 1

The type of linked list in which the node does not contain any pointer or reference to the previous node is . . . . . . . .

Accepted Answer

Singly linked list

Answer

Circularly singly linked list

Answer

Circular doubly linked list

Answer

Doubly linked list

Question 2

In the function malloc(), each byte of allocated space is initialized to zero.

Accepted Answer

False

Answer

True

Question 3

The number of arguments taken as input which allocating memory dynamically using malloc() is . . . . . . . .

Accepted Answer

1

Answer

0

Answer

2

Answer

3

Question 4

Choose the statement which is incorrect with respect to dynamic memory allocation.

Accepted Answer

Execution of the program is faster than that of static memory allocation

Answer

Memory is allocated in a less structured area of memory, known as heap

Answer

Used for unpredictable memory requirements

Answer

Allocated memory can be changed during the run time of the program based on the requirement of the program

Question 5

Pick out the correct statement with respect to the heap.

Accepted Answer

Everything on the heap is anonymous

Answer

Local variables are stored on the heap

Answer

Static variables are stored on the heap

Answer

Heap is the data structure that is used to implement recursive function calls

Question 6

The size of both stack and heap remains the same during run time.

Accepted Answer

False

Answer

True

Question 7

The advantage of using linked lists over arrays is that . . . . . . . .

Accepted Answer

Insertion and deletion of an element can be done at any position in a linked list

Answer

Linked list is an example of linear data structure

Answer

Linked list can be used to store a collection of homogenous and heterogeneous data types

Answer

The size of a linked list is fixed

Question 8

The incorrect statement with respect to dangling pointers is . . . . . . . .

Accepted Answer

If memory leak occurs, it is mandatory that a dangling pointer arises

Answer

Pointer pointing to non-existent memory location is called dangling pointer

Answer

When a dynamically allocated pointer references the original memory after it has been freed, a dangling pointer arises

Answer

Dangling pointer may result in segmentation faults and potential security risks