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

• Question 251:

  Which of the following operators accept integer arguments only? (Choose two.)

  A. |

  B. | |

  C. ~

  D. !

  Correct Answer: AC

• Question 252:

  Which of the following is a user defined data type?

  1:

  struct person

  {

  char name[20];

  int age;

  };

  2:

  int l=2;

  3:

  enum color {red,blue, green};

  D.

  char c;

  B.

  2

  C.

  3

  D.

  4

  Correct Answer: AC

• Question 253:

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

  #include

  #include

  using namespace std;

  string fun(string, string);

  int main()

  {

  string s="Hello";

  cout << fun(s, " World");

  return 0;

  }

  string fun(string s1, string s2)

  {

  return s1+s2;

  }

  A. It will print: Hello World

  B. It will print: Hello

  C. It will print: World

  D. It will print: HW

  Correct Answer: A

• Question 254:

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

  #include

  #include

  using namespace std;

  class A {

  protected:

  int y;

  public:

  int x,z;

  A() : x(2), y(2), z(1) { z = x + y; }

  A(int a, int b) : x(a), y(b) { z = x + y;}

  void Print() { cout << z; }

  };

  class B : public A {

  public:

  int y;

  B() : A() {}

  B(int a, int b) : A(a,b) {}

  void Print() { cout << z; }

  };

  int main () {

  A b;

  b.Print();

  return 0;

  }

  A. It prints: 4

  B. It prints: 0

  C. It prints: 3

  D. It prints: 2

  Correct Answer: A

• Question 255:

  How many times will the program print "HELLO" ?

  #include

  using namespace std;

  int main()

  {

  cout<<"HELLO";

  main();

  return 0;

  }

  A. 65536

  B. 32769

  C. 1

  D. Till stack overflows

  Correct Answer: D

• Question 256:

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

  #include

  using namespace std;

  void print(char *c);

  int main (int argc, const char * argv[])

  {

  print("Test");

  return 0;

  } void print(char *c) { cout<

  A. It prints: Test

  B. It prints: T

  C. It prints: st

  D. None of these

  Correct Answer: A

• Question 257:

  Which of the following operations is INCORRECT?

  A. int i=15;

  B. long int k=123

  C. float f=12,2;

  D. double d=12;

  Correct Answer: C