The operator to free the allocated memory using new operator is ________________.

• A) del
• B) free
• C) remove
• D) delete

The memory allocation in C++ is carried out with the help of _______________.

• A) dot operator
• B) new operator
• C) NULL pointer
• D) + operator

Where should delete typically be called to deallocate memory allocated in a constructor?

• A) In another member function.
• B) In the main program.
• C) In the destructor
• D) Immediately after new.

What will be the output of following statement?
cout << setfill(‘0’) << setw(7) << 128 ;

• A) 1280000
• B) 0128128
• C) 0000128
• D) 0012800

____________will return the number of bytes reserved for a variable or data type.

• A) void pointer
• B) new operator
• C) sizeof operator
• D) free operator

Which of the following is normally a source for cin stream?

• A) Printer
• B) Variable
• C) Keyboard
• D) Constant

i+=2 is equivalent to ___________.

• A) i=i++;
• B) 2+=I;
• C) i=i+2;
• D) i=1+I;

How does new in C++ differ from malloc()?

• A) new is a function, while malloc is an operator
• B) new calls the constructor, malloc does not
• C) new requires manual size calculation with sizeof
• D) new returns a void* pointer

Why is malloc() discouraged in C++ for objects?

• A) It cannot allocate memory.
• B) It only works with primitive types.
• C) It does not call constructors/destructors
• D) It is slower than new.

For the joining of two strings in string class, we may use “+” operator, can we use “-” operator the same way for subtracting strings?

• A) Yes
• B) No
• C) Yes along “+” operator only
• D) Yes along “:?” operator only

If class A is a friend of class B, and class B is a friend of class C. If class A wants class C to be a friend, __________________

• A) it has to declare , class A as a friend
• B) it has to declare, class C as a friend
• C) it has to declare, class B as a friend
• D) it has to declare, class B and class A as friend classes

Which of the following is a destination of cout stream?

• A) Constant
• B) Data type
• C) Variable
• D) Printer

Which statement is true about the following code in C++? int &j = i;

• A) The value of variable i is assigned to the variable j
• B) The address of variable i is assigned to the variable j
• C) j is a synonym of variable i
• D) The address of variable j is assigned to the variable i

Once an object is declared as a friend, _________________________.

• A) it has no access to data members of the class
• B) it has access to public members only
• C) it has access to protected data members only
• D) it has access to all non-public members as if they were public

The return type of the overloaded new operator must be?

• A) void (nothing)
• B) void pointer
• C) object pointer
• D) int pointer

The ws manipulator can be used with ______ stream(s).

• A) Input
• B) None of the given options
• C) Input/Output
• D) Output

In C language, the region of memory allocated at runtime is called _______________.

• A) available memory
• B) heap
• C) free store
• D) stack

Suppose we have a data member buf of our String class and we like to refer it in a member function of the same class, then choose which option is incorrect?

• A) (*this).buf
• B) this.(*buf)
• C) buf
• D) this -> buf

Which of the following syntax is best used to delete an array of 5 objects named ‘string’ allocated using new operator.

• A) delete []string ;
• B) delete string[5] ;
• C) delete string ;
• D) delete string[] ;

Overloaded member operator function is always called by _______

• A) Class
• B) Object
• C) Primitive data type
• D) Compiler