Free C++ Institute CPA-21-02 Exam Dumps Questions & Answers

What is the output of the program?
#include <iostream>
using namespace std;
#define SQR(x)(x*x)
int main(int argc, char *argv[]) {
int x, y=2;
x = SQR(y);
cout << x << ", " <<y;
return 0;
}

• A.  It prints: 4, 2
• B.  It prints: 3, 3
• C.  It prints: 9, 2
• D.  It prints: 3, 2

What is the output of the program if characters 'h', 'e', 'l', 'l' , 'o' and enter are supplied as input?
#include <iostream>
#include <string>
using namespace std;
void f();
int main()
{
f();
return 0;
}
void f()
{
char c;
c = cin.get();
cout << c;
if(c != '\n')
f();
}

• A.  It prints: olleh
• B.  It prints: hello
• C.  It prints: o
• D.  It prints: h

Which code line inserted instead of the comment below will cause the program to produce the expected output?

• A.  using namespace myNamespace1; using namespace myNamespace2;
• B.  using namespace myNamespace1::y; using myNamespace2::x;
• C.  using namespace myNamespace2::y; using myNamespace1::x;
• D.  using namespace myNamespace1;

What happens when you attempt to compile and run the following code?
#include <cstdlib>
#include <iostream>
using namespace std;
inline float sum(float a,float b)
{
return a+b;
}
int main()
{
float a,b;
a = 1.5; b = 3.4;
cout<<sum(a,b);
return 0;
}

• A.  It prints: 0
• B.  It prints: 4
• C.  It prints: 5
• D.  It prints: 4.9

What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class First
{
string *s;
public:
First() { s = new string("Text");}
~First() { delete s;}
void Print(){ cout<<*s;}
};
int main()
{
First FirstObject;
FirstObject.Print();
FirstObject.~First();
}

• A.  It prints: Text
• B.  Compilation error
• C.  Runtime error.
• D.  None of these