Question 21 : Which of the following header files must necessarily be included to use dynamic memory allocation functions?
1. stdlib.h
2. stdio.h
3. memory.h
4. dos.h
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Question 22 : Local variables are stored in an area called ___________
1. Heap
2. Permanent storage area
3. Free memory
4. Stack
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Question 23 : A condition where in memory is reserved dynamically but not accessible to any of the programs is called _____________
1. Memory leak
2. Dangling pointer
3. Frozen memory
4. Pointer leak
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Question 24 : Garbage collector frees the programmer from worrying about ___________
1. Dangling pointers
2. Creating new objects
3. Memory leak
4. Segmentation errors
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Question 25 : In the function realloc(), if the new size of the memory block is larger than the old size, then the added memory ___________
1. is initialized to junk values
2. is initialized to zero
3. results in an error
4. is not initialized
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Question 26 : The number of arguments taken as input which allocating memory dynamically using malloc() is ___________
1. 0
2. 1
3. 2
4. 3
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Question 27 : Which of the following is an example for non linear data type?
1. Tree
2. Array
3. Linked list
4. Queue
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Question 28 : Pick out the correct statement with respect to the heap.
1. Local variables are stored on the heap
2. Static variables are stored on the heap
3. Heap is the data structure which is used to implement recursive function calls
4. Everything on the heap is anonymous
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Question 29 : The type of linked list in which the node does not contain any pointer or reference to the previous node:
1. Circularly singly linked list
2. Singly linked list
3. Circular doubly linked list
4. Doubly linked list
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Question 30 : When the pointer is NULL, then the function realloc is equivalent to the function ___________
1. malloc
2. calloc
3. free
4. alloc
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