Using Pointer in C++ sample MCQs and Question with solution

Using Pointer in C++ Programming sample MCQs and Question with solution 

1.Which of the following gives the memory address of a pointer a?
A. a;
B. *a;
C. &a;
D. address(a);

2. Which of the following gives the value stored at the address pointed to by the pointer a?
A. a;
B. val(a);
C. *a;
D. &a;

3. Which of the following is the proper keyword to deallocate memory?
A. free
B. delete
C. clear
D. remove

4. What will be the output of this code?

int *p1,*p2;

p1=new int;

p2=new int;

*p1=10;

*p2=20;

cout<<*p1<< "  "<<*p2<<endl;

*p1=*p2;

cout<<*p1<< "  "<<*p2<<endl;

*p1=30;

cout<<*p1<< "  "<<*p2<<endl;

 

 SOLUTION: 

1.Which of the following gives the memory address of a pointer a?
A. a;

2. Which of the following gives the value stored at the address pointed to by the pointer a?
C. *a;

3. Which of the following is the proper keyword to deallocate memory?
B. delete

4. What will be the output of this code?

10 20 20 20 30 20