최신 CPA-21-02 무료덤프 - C++ Institute CPA - C++ Certified Associate Programmer

문제1

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main()
{
int x=20;
int *ptr;
ptr = &x;
cout<<*ptr;
return 0;
}

A. It prints: 2

B. It prints address of ptr

C. It prints: 0

D. It prints: 20

정답: D

문제2

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class First
{
public:
void Print(){ cout<<"from First";}
};
class Second
{
public:
void Print(){ cout<< "from Second";}
};
int main()
{
Second t[2];
for (int i=0; i<2; i++)
t[i].Print();
}

A. It prints: from Firstfrom First

B. It prints: from First

C. It prints: from Second

D. It prints: from Secondfrom Second

정답: D

문제3

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main(){
int i = 1;
if (i++==1) {
cout << i;
} else {
cout << i-1;
}
return 0;
}

A. It prints: 2

B. It prints: 1

C. It prints: 0

D. It prints: -1

정답: A

문제4

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
void fun(int);
int main()
{
int a=0;
fun(a);
return 0;
}
void fun(int n)
{
if(n < 2)
{
fun(++n);
cout << n;
}
}

A. It prints: 21

B. None of these

C. It prints: 012

D. It prints: 0

정답: A

문제5

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main (int argc, const char * argv[])
{
int a = 30, b = 1, c = 5, i=10;
i = b < a < c;
cout << i;
return 0;
}

A. It prints: 1

B. It prints: 10

C. It prints: 0

D. compilation fails

정답: A

문제6

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class A {
public :
void print() {
cout << "A ";
}
};
class B {
public :
void print() {
cout << "B ";
}
};
int main() {
B sc[2];
B *bc = (B*)sc;
for (int i=0; i<2;i++)
(bc++)->print();
return 0;
}

A. It prints: A B

B. It prints: B B

C. It prints: A A

D. It prints: B A

정답: B

문제7

Which code, inserted at line 10, generate the output "50"?
#include <iostream>
using namespace std;
class Base {
int age;
public:
Base () {
age=5;
};
//insert code here
void Print() { cout << age;}
};
void setAge(Base &ob) {ob.age = 0;}
int main () {
Base a;
a.Print();
setAge(a);
a.Print();
return 0;
}

A. friend void setAge(Base &ob);

B. friend void setAge(Base *ob);

C. None of these

D. friend void setAge(Base ob);

정답: A

문제8

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

A. It prints: ?1,1

B. It prints: 1,2

C. It prints: 3,3

D. It prints: 1,1

정답: C

문제9

What is the output of the program given below?
#include <iostream>
using namespace std;
int main (int argc, const char * argv[])
{
enum state { ok, error, warning};
enum state s1, s2, s3, s4;
s1 = ok;
s2 = warning;
s3 = error;
s4 = ok;
cout << s1<< s2<< s3<< s4;
return 0;
}

A. 0210

B. 1322

C. 1234

D. compilation fails

정답: A

문제10

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

A. It prints: 33

B. It prints: -13

C. It prints: -1-1

D. It prints: -31

정답: B

문제11

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int op(int x, int y)
{
return x?y;
}
int op(int x, float y)
{
return x+y;
}
int main()
{
int i=1, j=2, k, l;
float f=0.23;
k = op(i, j);
l = op(j, f);
cout<< k << "," << l;
return 0;
}

A. It prints: ?1,?1

B. It prints: ?1,2

C. Compilation fails

D. It prints: ?1,3

정답: B

문제12

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int op(int x, int y);
float op(int x, float y);
int main()
{
int i=1, j=2, k;
float f=0.3;
k = op(i, j);
cout<< k << "," << op(0, f);
return 0;
}
int op(int x, int y)
{
return x+y;
}
float op(int x, float y)
{
return x?y;
}

A. It prints: 3,?0.3

B. It prints: 0,0

C. It prints: 3,1

D. It prints: 3,0

정답: A

문제13

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class A
{
public:
virtual void Print(){ cout<<"A";}
};
class B:public A
{
public:
void Print(){ cout<< "B";}
};
int main()
{
A *obj;
A ob1;
obj = &ob1;
obj?>Print();
B ob2;
obj = &ob2;
obj?>Print();
}

A. It prints: AB

B. It prints: AA

C. It prints: BB

D. It prints: BA

정답: A

문제14

What happens when you attempt to compile and run the following code?
#include <iostream>
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 1

B. It prints: 1 0

C. It prints: 0 0

D. Compilation error

정답: C

문제15

Which of the following operations is INCORRECT?

A. int i=15;

B. double d=12;

C. float f=12,2;

D. long int k=123

정답: C

문제16

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class A
{
public:
virtual void Print()=0;
};
class B:public A
{
public:
virtual void Print(){ cout<< "B";}
};
int main()
{
B ob2;
A *obj;
obj = &ob2;
obj?>Print();
}

A. It prints: AB

B. It prints: A

C. It prints: B

D. It prints: BA

정답: C

최신 CPA-21-02 무료덤프 - C++ Institute CPA - C++ Certified Associate Programmer

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