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;
class A {
public:
virtual void Print()=0;
};
class B:public A {
public:
virtual void Print() { cout<< "B"; }
};
class C:public A {
public:
virtual void Print() { cout<< "C"; }
};
int main()
{
B ob2;
C ob3;
A *obj;
obj = &ob2;
obj?>Print();
obj = &ob3;
obj?>Print();
}

A. It prints: CC

B. It prints: BB

C. It prints: BC

D. It prints: CB

정답: C

문제2

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: 2

B. It prints: 23

C. It prints: 123

D. It prints: 3

정답: B

문제3

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

문제4

What is the output of the program if characters 't', 'e', 's' and 't' enter are supplied as input?
#include <iostream>
#include <string>
using namespace std;
int main()
{
string s;
getline( cin, s );
cout << s << " " << s.length();
return( 0 );
}

A. It prints: test 5

B. It prints: test 4

C. It prints: 4

D. It prints: test

정답: B

문제5

What will happen if the memory cannot be allocated?

A. The program will print: Error allocating memory

B. The program will print: Standard exception

C. The program will print: Unknown exception

D. The program will cause a compilation error

정답: A

문제6

What is the output of the program given below?
#include <iostream>
using namespace std;
int main (int argc, const char * argv[])
{
int i=10;
{
int i=0;
cout<<i;
}
{
int i=5;
cout << i;
}
cout<<i;
return 0;
}

A. 1010

B. None of these

C. 0510

D. 101010

정답: C

문제7

What is the output of the program given below?
#include <iostream>
using namespace std;
int main (int argc, const char * argv[])
{
float f=?10.501;
cout<<(int)f;
}

A. 11

B. 0

C. ?11

D. ?10

정답: D

문제8

Which code, inserted at line 19, generates the output "23"?
#include <iostream>
#include <string>
using namespace std;
class A {
int x;
protected:
int y;
public:
int z;
A() { x=1; y=2; z=3; }
};
class B : public A {
string z;
public:
int y;
void set() { y = 4; z = "John"; }
void Print() {
//insert code here
}
};
int main () {
B b;
b.set();
b.Print();
return 0;
}

A. cout << A::y << A::z;

B. cout << B::y << B::z;

C. cout << y << z;

D. cout << y << A::z;

정답: A

문제9

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main()
{
int *t;
t = new int[2];
for (int i=0; i<2; i++) {
t[i] = i;
}
cout << t[1];
}

A. It prints: 1

B. It prints: 10

C. It prints: 0

D. It prints: ?1

정답: A

문제10

What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class complex{
double re, im;
public:
complex() : re(1),im(0.4) {}
complex operator?(complex &t);
void Print() { cout << re << " " << im; }
};
complex complex::operator? (complex &t){
complex temp;
temp.re = this?>re ? t.re;
temp.im = this?>im ? t.im;
return temp;
}
int main(){
complex c1,c2,c3;
c3 = c1 ? c2;
c3.Print();
}

A. It prints: 1 0.8

B. It prints: 1 0.4

C. It prints: 2 0.8

D. It prints: 0 0

정답: D

문제11

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: 2

B. It prints: 5

C. It prints: 1

D. It prints: 10

정답: D

문제12

What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
const int size = 3;
class A {
public:
string name;
A() { name = "Bob";}
A(string s) { name = s;}
A(A &a) { name = a.name;}
};
class B : public A {
public:
int *tab;
B() { tab = new int[size]; for (int i=0; i<size; i++) tab[i]=1;}
B(string s) : A(s) { tab = new int[size]; for (int i=0; i<size; i++) tab[i]=1;}
~B() { delete tab; }
void Print() {
for (int i=0; i<size; i++) cout << tab[i];
cout << name;
}
};
int main () {
B b1("Alan");
B b2;
b1.tab[0]=0;
b1.Print(); b2.Print();
return 0;
}

A. It prints: 011Alan111Bob

B. It prints: 0

C. It prints: Alan

D. It prints: 111

정답: A

문제13

What will happen when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main (int argc, const char * argv[])
{
enum state { ok, error, warning};
enum state s1, s2, s3;
s1 = ok;
s2 = warning;
s3 = error;
s4 = ok;
cout << s1<< s2<< s3;
return 0;
}

A. It will print:"123"

B. It will print:"021"

C. It will print:"132"

D. compilation error

정답: D

문제14

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 A {
public:
virtual void Print(){ cout<< "B";}
};
class C:public B {
public:
void Print(){ cout<< "C";}
};
int main()
{
A ob1;
B ob2;
C ob3;
B *obj;
obj = &ob2;
obj?>Print();
obj = &ob3;
obj?>Print();
}

A. It prints: AB

B. It prints: AA

C. It prints: BB

D. It prints: BC

정답: D

문제15

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

A. It prints: 2

B. It prints: 16

C. It prints: 0

D. It prints: 4

정답: D

문제16

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

A. It prints: T

B. It prints: Tesc

C. It prints an empty line

D. It prints: st

정답: B

문제17

Point out an error in the program.
#include <iostream>
using namespace std;
int main()
{
char s1[] = "Hello";
char s2[] = "world";
char *const ptr = s1;
*ptr = 'a';
ptr = s2;
return 0;
}

A. Compilation error at line 9

B. None of these

C. Cannot modify a const object

D. No error

정답: A,C

문제18

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class First
{
public:
First() { cout << "Constructor";}
void Print(){ cout<<"from First";}
};
int main()
{
First FirstObject;
FirstObject.Print();
}

A. It prints: Constructor

B. None of these

C. It prints: from First

D. It prints: Constructorfrom First

정답: D

문제19

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int fun(int x) {
return 2*x;
}
int main(){
int i;
i = fun(0.5) || fun(0);
cout << i;
return 0;
}

A. It prints: 1

B. It prints: 0

C. It prints: -1

D. Compilation error

정답: B

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

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