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

• Question 241:

  Which definitions are correct?

  A. int age;

  B. int double;

  C. char c;

  D. int char;

  Correct Answer: AC

• Question 242:

  What is the expected result of the following program?

  

  A. It prints: ABCD

  B. It prints: ACBD

  C. It prints: ACDB

  D. It prints: CABD

  Correct Answer: B

• Question 243:

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

  #include

  using namespace std;

  int min(int a, int b);

  int main()

  {

  int min(int,int);

  int b;

  b = min(10,20);

  cout << b;

  return 0;

  }

  int min(int a, int b)

  {

  return(b);

  }

  A. It prints: 20

  B. It prints: 10

  C. It prints: 1020

  D. It prints: 2010

  Correct Answer: A

• Question 244:

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

  #include

  using namespace std;

  int main()

  {

  const char *s;

  char str[] = "Hello";

  s = str;

  while(*s) {

  cout << *s++;

  }

  return 0;

  }

  A. It prints: el

  B. It prints: Hello

  C. It prints: H

  D. It prints: o

  Correct Answer: B

• Question 245:

  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;

  int z;

  A() { x=1; y=2; z=3; }

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

  void Print() {

  cout << z;

  }

  };

  int main () {

  A a(2,5);

  a.Print(); return 0; }

  A. It prints: 10

  B. It prints: 2

  C. It prints: 6

  D. It prints: 5

  Correct Answer: A

• Question 246:

  What is the output of the program?

  #include

  #include

  using namespace std;

  int main()

  {

  string s1="World";

  string s2;

  s2="Hello" + s1;

  cout << s2;

  return( 0 );

  }

  A. It prints: HelloWorld

  B. It prints: Hello

  C. It prints: World

  D. Compilation error

  Correct Answer: A

• Question 247:

  What is the output of the program if character 3 is supplied as input? #include

  using namespace std;

  int main () {

  int c;

  cin >> c;

  try

  {

  switch (c)

  {

  case 1:

  throw 20;

  case 2:

  throw 5.2f;

  case 3:

  throw 'a';

  }

  }

  catch (int e)

  { cout << "int exception. Exception Nr. " << e; }

  catch (float e)

  { cout << "float exception. Exception Nr. " << e; }

  catch (...)

  { cout << "An exception occurred."; }

  return 0;

  }

  A. It prints: float exception. Exception Nr.

  B. It prints: int exception. Exception Nr.

  C. It prints: An exception occurred.

  D. It prints: float exception. Exception Nr.

  Correct Answer: C

• Question 248:

  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

  Correct Answer: AB

• Question 249:

  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

  Correct Answer: B

• Question 250:

  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 << myNamespace1::var << var;

  B. cout << var << var;

  C. cout << myNamespace1::var << myNamespace2::var;

  D. None of these

  Correct Answer: C