Dynamic Memory Allocation

Difference Between array and calloc()

• array: Size is fixed

  calloc () : fixed size

• array: Size is fixed & static

  calloc () : fixed size & dynamic

• array: Size is fixed & dynamic

  calloc () : fixed size & dynamic

• array: Size is fixed & static

  calloc () : fixed size can be altered & dynamic

How can the wastage of memory be handled in dynamic memory allocation?

• malloc()

• free()

• realloc()

• delete()

How can we change the size of memory during run-time?

• malloc()

• calloc()

• realloc()

• sizeof()

Interpret (5*sizeof(float))

• 20 bytes

• 10 bytes

• 4 bytes

• 2 bytes

Predict the output?

• 0

• 1

• Undefined Behavior

• Compilation Error

Dynamic memory in C++ is allocated from which type of memory?

• Static

• Heap

• Stack

• Program Code

Functions and variables use _____ memory when created/accessed in C++.

• Heap

• Stack

• Static

• Program code

In CPP, dynamic memory allocation is done using ______________ operator.

• malloc

• alloc

• new

• allocate

________ must be able to allocate a block of contiguous storage of the right size.

• Operating System

• DBMS

• Admin

• End User

Which array has a pointer address that always points to the first element of the array?

• 1-D array

• 2-D array

• 3-D array

• Multi dimensional array