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C Programming - Memory Allocation

Exercise : Memory Allocation - General Questions
1.
Which header file should be included to use functions like malloc() and calloc()?
memory.h
stdlib.h
string.h
dos.h
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
What function should be used to free the memory allocated by calloc() ?
dealloc();
malloc(variable_name, 0)
free();
memalloc(variable_name, 0)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
How will you free the memory allocated by the following program? 
#include<stdio.h>
#include<stdlib.h>
#define MAXROW 3
#define MAXCOL 4

int main()
{
    int **p, i, j;
    p = (int **) malloc(MAXROW * sizeof(int*));
    return 0;
}
memfree(int p);
dealloc(p);
malloc(p, 0);
free(p);
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Specify the 2 library functions to dynamically allocate memory?
malloc() and memalloc()
alloc() and memalloc()
malloc() and calloc()
memalloc() and faralloc()
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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