C++ Institute C++ Institute Certifications CPA-21-02 Questions & Answers

• Question 191:

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

  #include

  using namespace std;

  int main()

  {

  int i = 0;

  i++;

  goto lab;

  i++;

  lab:

  cout<

  return 0;

  }

  A. It prints: 0

  B. It prints: 34

  C. It prints: 1

  D. It prints: 3

  Correct Answer: C

• Question 192:

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

  #include

  using namespace std;

  void fun(int*);

  int main()

  {

  int *x;

  int i=2;

  x=andi;

  fun(x);

  cout<

  return 0;

  }

  void fun(int *i)

  {

  *i = *i * *i;

  }

  A. It prints: 2

  B. It prints: 4

  C. It prints: 0

  D. It prints: 1

  Correct Answer: B

• Question 193:

  What is the output of the program if characters 'h', 'e', 'l', 'l' , 'o' and enter are supplied as input?

  #include

  #include

  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: hello

  B. It prints: olleh

  C. It prints: h

  D. It prints: o

  Correct Answer: A

• Question 194:

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

  #include

  using namespace std;

  int main()

  {

  int x,y=10;

  float f;

  f = 5.90;

  cout << f << ", ";

  x=f;

  cout << x <<", ";

  f=y;

  cout << f;

  return 0;

  }

  A. It prints: 5, 5, 10.00

  B. It prints: 5.9, 5, 10

  C. It prints: 6, 5, 10

  D. It prints: 6, 5, 10.00

  Correct Answer: B

• Question 195:

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

  #include

  using namespace std;

  int f(int a, int b);

  int main()

  {

  float b;

  b = f(20,10);

  cout << b;

  return 0;

  }

  int f(int a, int b)

  {

  return a/b;

  }

  A. It prints: 2

  B. It prints: 5

  C. It prints: 10

  D. It prints: 0

  Correct Answer: A

• Question 196:

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

  using namespace std;

  int main(){

  int i = 1;

  if (i++==1) {

  cout << i;

  } else {

  cout << i-1;

  }

  return 0;

  }

  A. It prints: 0

  B. It prints: 1

  C. It prints: -1

  D. It prints: 2

  Correct Answer: D

• Question 197:

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

  #include

  using namespace std;

  int mul (int a, int b=2)

  {

  int r;

  r=a*b;

  return (r);

  }

  int main ()

  {

  cout << mul(1) << mul(2,4);

  return 0;

  }

  A. It prints: 2

  B. It prints: 28

  C. It prints: 8

  D. It prints: 6

  Correct Answer: B

• Question 198:

  What will be the output of the program?

  #include

  using namespace std;

  int main()

  {

  int i=0;

  for(; i<=5; i++)

  cout << i;

  return 0;

  }

  A. 012345

  B. 0123

  C. 5

  D. 6

  Correct Answer: A

• Question 199:

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

  #include

  using namespace std;

  class complex{

  double re;

  double im;

  public:

  complex() : re(0),im(0) {}

  complex(double x) { re=x,im=x;};

  complex(double x,double y) { re=x,im=y;}

  void print() { cout << re << " " << im;}

  };

  int main(){

  complex c1;

  c1.print();

  return 0;

  }

  A. It prints: 1 0

  B. It prints: 1 1

  C. It prints: 0 0

  D. Compilation error

  Correct Answer: C

• Question 200:

  How many times will "HELLO" be printed?

  #include

  using namespace std;

  int main()

  {

  for(int i=?1; i<=10; i++)

  {

  if(i < 5)

  continue;

  else

  break;

  cout<<"HELLO";

  }

  return 0;

  }

  A. 1

  B. 2

  C. 0

  D. 20

  Correct Answer: C