DMA and Stacks

DMA and Stacks

University

10 Qs

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DMA and Stacks

DMA and Stacks

Assessment

Quiz

Computers

University

Practice Problem

Hard

Created by

RAVIKANTH K

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which function is used to delete the allocated memory space?

Malloc()

free()

Calloc()

None

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

#include <stdio.h>

void main() {

int ptr = (int )malloc(sizeof(int));

*ptr = 10;

free(ptr);

p = 5;

printf("%d", ptr);

}

Compilation error

5

0

Garbage value

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What function should be used to free the memory allocated by calloc() ?

dealloc();

malloc(variable_name, 0)

free();

memalloc(variable_name, 0)

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How to increase the size of dynamically allocated array?

realloc(variable_name, value);

malloc(variable_name, value);

calloc(variable_name, value);

I dont know

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt


What is correct about calloc() function?

Allocates the space for elements of an array.

Initializes the elements to zero.

If space is insufficient returns a NULL pointer.

All of these

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the functionality of realloc()?

Change the location of memory allocated by malloc() or calloc().

Reallocates memory deleted by free() function.

It is used to modify the size of the previously allocated memory space.

None of these

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Process of inserting an element in stack is called ____________

Create

Push

Evaluation

Pop

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