C++ Certified Associate Programmer (CPA) Free Practice Test

Question 1

What happens when you attempt to compile and run the following code?
#include <iostream> #include <string>
using namespace std;
class A {
protected:
int y;
public:
int x, z;
A() : x(1), y(2), z(0) {}
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(2,5);
b.Print();
return 0;
}

A. It prints: 1

B. It prints: 5

C. It prints: 10

D. It prints: 2

Correct Answer: C

Question 2

What is the output of the program?
#include <iostream> #include <string>
using namespace std;
struct t { int tab[2];
};
class First
{
struct t u;
public:
First() {
u.tab[0] = 1;
u.tab[1] = 0;
}
void Print(){
cout << u.tab[0] << " " << u.tab[1];
}
};
int main()
{
First t;
t.Print();
}

A. It prints: 1 0

B. It prints: 2 2

C. It prints: 1 1

D. It prints: 0 0

Correct Answer: A

Question 3

What happens when you attempt to compile and run the following code?
#include <iostream>
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: 2010

B. It prints: 10

C. It prints: 1020

D. It prints: 20

Correct Answer: D

Question 4

What happens if you try to compile and run this program?
#include <iostream>
using namespace std;
int main (int argc, const char * argv[])
{
print("Test");
return 0;
}
void print(int c[])
{
cout<<c;
}

A. None of these

B. It prints: Test

C. Program terminates abnormally

D. Compilation fails

Correct Answer: D

Question 5

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

A. It prints: 0

B. It prints: 4

C. It prints: 5

D. It prints: 4.9

Correct Answer: D

Question 6

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
void set(struct person*);
struct person
{
char name[25];
int age;
};
int main()
{
struct person e = {"Steve", 30};
set(&e);
cout<< e.name << " " << e.age;
return 0;
}
void set(struct person *p)
{
p->age = p->age + 1;
}

A. None of these

B. Error: in structure

C. It prints: Steve 31

D. Error: in prototype declaration unknown struct person

Correct Answer: C

Question 7

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main(){
int i, j;
for(i = 0, j = 1; j < 2, i < 4; i++, j++);
cout << i << " " << j; return 0;
}

A. It prints: 4 3

B. It prints: 3 2

C. It prints: 4 5

D. It prints: 2 3

Correct Answer: C

Question 8

What will happen when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main()
{
const char *s;
char str[] = "Hello ";
s = str;
while(*s) {
cout << *++s;
*s++;
}
return 0;
}

A. It will print:"Hello "

B. It will print garbage value

C. It will print:"el "

D. The code will not compile.

Correct Answer: C

Question 9

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int op(int x, int y);
int main()
{
float *pf;
float f=0.9;
pf=&f;
cout << op(1, *pf);
return 0;
}
int op(int x, int y)
{
return x*y; }

A. It prints: 0.5

B. It prints: ?1

C. It prints: 0

D. It prints: 1

Correct Answer: C

Question 10

Which statement should be added in the following program to make work it correctly?
using namespace std;
int main (int argc, const char * argv[])
{
cout<<"Hello";
}

A. #include<conio.h>

B. #include <iostream>

C. #include<stdio.h>

D. #include<stdlib.h>

Correct Answer: B

Question 11

What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class A {
protected:
int y;
public:
int x,z;
A() : x(1), y(2), z(0) { 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: 0

B. It prints: 1

C. It prints: 2

D. It prints: 3

Correct Answer: D

Question 12

What is the output of the program?
#include <iostream>
using namespace std;
#define PRINT(i) cout<<i;
int main()
{
int y=2, z=3;
PRINT(y);
PRINT(z);
return 0;
}

A. It prints: 23

B. It prints: 2

C. It prints: 123

D. It prints: 3

Correct Answer: A

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C++ Institute C++ Certified Associate Programmer (CPA) Free Practice Test