C++ Institute CPA-21-02 Online Practice Questions and Exam Preparation

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

• Question 1:

  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;
  C. float f=12,2;

• Question 2:

  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
  A. It prints: Test

• Question 3:

  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
  D. Till stack overflows

• Question 4:

  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
  A. It prints: 4

  ---

  explanation:

  Explanation/Reference:

• Question 5:

  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
  A. It will print: Hello World

• Question 6:

  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};

  A. 1
  B. 2
  C. 3
  D. 4
  A. 1
  C. 3

  ---

  explanation:

  Explanation/Reference:

• Question 7:

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

  A. |
  B. | |
  C. ~
  D. !
  A. |
  C. ~

• Question 8:

  Which code, inserted at line 12, generates the output "5b"? #include using namespace std; namespace myNamespace1 { int var = 5; } namespace myNamespace2 { char var = 'b'; } int main () { //insert code here return 0; }

  A. cout
  B. cout
  C. cout
  D. None of these
  C. cout

• Question 9:

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

  

  A. It prints: BAD
  B. It prints: BACD
  C. It prints: ABCD
  D. It prints: BAC
  B. It prints: BACD

• Question 10:

  Which of the following structures are correct?

  1:

  struct s1{

  int x;

  char c;

  };

  2:

  struct s2{

  float f;

  struct s2 *s;

  };

  3:

  struct s3{

  float f;

  in i;

  }

  A. 1
  B. 2
  C. 3
  D. All of these
  A. 1
  B. 2