Question 1

What happens when you attempt to compile and run the following code? #include using namespace std; class BaseC { public: int *ptr; BaseC() { ptr = new int(10);} BaseC(int i) { ptr = new int(i); } ~BaseC() { delete ptr; } }; void fun(BaseC x); int main() { BaseC *o = new BaseC(5); fun(*o); } void fun(BaseC x) { cout << "Hello:"<<*x.ptr; }

Options :

A : It prints: Hello:50

B : It prints: Hello:10

C : It prints: Hello:5

D : Compilation error

Answer: C

Question 2

Which of the following expressions decrement variable i by 2? (Choose two.)

Options :

A :

i &= 0x03;

B :

i –= 2;

C :

––i; i––;

D : ––i––;

Answer: B,C

Question 3

What happens when you attempt to compile and run the following code?

Options :

A : It prints: 1

B : It causes a compilation error

C : It prints: 0

D : It prints: My exception,

Answer: B

Question 4

What happens if characters 'w', 'o', 'r', 'l' and 'd' are entered as input? #include #include using namespace std; int main() { string s1 = "Hello"; string s2; getline( cin, s2 ); cout << s1 + s2; return( 0 ); }

Options :

A : It prints: Helloworld

B : It prints: Hello

C : It prints: world

D : Compilation error

Answer: A

Question 5

What happens when you attempt to compile and run the following code? #include using namespace std; int main() { const int x=0; const int *ptr; ptr = &x; cout<<*ptr; return 0; }

Options :

A : It prints: 0

B : It prints address of x

C : It prints: 1

D : Compilation error

Answer: A

Higher Test Marks with Free Online CPA-21-02 Exam Practice

Buying Options: