The Best CPA Exam Study Material and Preparation Test Question Dumps [Q51-Q71]

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The Best CPA Exam Study Material and Preparation Test Question Dumps

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C++ Primer (5th Edition) by Stanley Lippman, Josée Lajoie, and Barbara Moo

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QUESTION 51
Which of the following can be checked in a switch?case statement?

char

int

enum

double

QUESTION 52
What is the output of the program?
#include <iostream> #include <string>
using namespace std;
union t { char c; int i; };
class First { union t u; public: First() {
u.c = ‘A’;
}
void Print(){
cout << u.c;
}
};
int main()
{
First *t = new First();
t->Print();
}

Garbage value

It prints: A

It prints: A 65

Compilation error

QUESTION 53
What will the variable “age” be in class B?
class A { int x; protected:
int y;
public:
int age;
};
class B : private A {
string name;
public:
void Print() {
cout << name << age;
}
};

public

private

protected

None of these

QUESTION 54
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main()
{
const int x=20;
const int *ptr;
ptr = &x;
*ptr = 10;
cout<<*ptr;
return 0;
}

It prints: 20

It prints: 10

Compilation error at line 8

It prints address of ptr

QUESTION 55
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()
{
int i=2, j=2, k;
float f=0.3;
k = op(i, j);
cout<< k << “,” << op(1, f);
return 0;
}
int op(int x, int y)
{
return x+y;
}

It prints: 4,1

It prints: 4,0.7

It prints: 4,0

It prints: 0,4

QUESTION 56
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;
}

It will print:”el “

The code will not compile.

It will print:”Hello “

It will print garbage value

QUESTION 57
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
void fun(int*);
int main()
{
int i=2;
fun(&i);
cout<<i;
return 0;
}
void fun(int *i)
{
*i = *i**i;
}

It prints: 1

It prints: 4

It prints: 10

It prints: 0

QUESTION 58
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 tab[5]={1,2,3};
for (int i=0; i<5; i++)
cout <<tab[i];
return 0;
}

compilation fails

It prints: 12300

It prints: 12345

It prints: 00000

QUESTION 59
Which code, inserted at line 10, generates the output “2?1”?
#include <iostream>
#include <string>
using namespace std;
class A {
protected:
int y;
public:
int z;
};
//insert code here
public:
void set() {
y = 2;
z = 3;
}
void Print() { cout << y << z; }
};
int main () {
B b;
b.set();
b.z
= ?1; b.Print(); return 0; }

class B : private A {

class B : public A {

class B : protected A {

class B {

QUESTION 60
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
void fun(int*);
int main()
{
int *x;
int i=2;
x=&i;
fun(x);
cout<<i;
return 0;
}
void fun(int *i)
{
*i = *i * *i;
}

It prints: 2

It prints: 4

It prints: 0

It prints: 1

QUESTION 61
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main()
{
float x=3.5,y=1.6;
int i,j=2;
i = x + j + y;
cout << i;
return 0;
}

It prints: 7

It prints: 6

It prints: 7,1

Compilation error

Section: Volume A

QUESTION 62
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class A {
public:
A() { cout << “A0 “;}
A(string s) { cout << “A1”;}
};
class B : public A {
public:
B() { cout << “B0 “;}
B(string s) { cout << “B1 “;}
};
class C : private B {
public:
C() { cout << “C0 “;}
C(string s) { cout << “C1 “;}
};
int main () {
B b1;
C c1;
return 0;
}

It prints: A0 B0 A0 B1 A0 C0 A0 C1

It prints: B0 B1 C0 C1

It prints: A0 B0 A0 B0 C0

It prints: B0 B1

QUESTION 63
What will be the output of the program?
#include <iostream>
using namespace std;
int main()
{
const int y = 5;
const x = ?10;
cout<<x<<” “<<y;
return 0;
}

?10 5

5 ?10

Compilation error

None of these

QUESTION 64
What will the variable “y” be in class B?
class A {
int x;
protected:
int y;
public:
int age;
};
class B : private A {
string name;
public:
void Print() {
cout << name << age;
}
};

public

private

protected

None of these

QUESTION 65
What happens if character 3 is entered as input?
#include <iostream>
using namespace std;
class A {
public:
int i;
};
int main () {
int c;
A obj;
obj.i = 5;
cin >> c;
try
{
switch (c)
{
case A. throw 20;
case B. throw 5.2f;
case C. throw obj;
default: cout<<“No exception”;
}
}
catch (int e)
{ cout << “int exception. Exception Nr. ” << e; }
catch (A e)
{ cout << “object exception. Exception Nr. ” << e.i; }
catch (…)
{ cout << “An exception occurred.”; }
return 0;
}

It prints: object exception. Exception Nr. 5

It prints: int exception. Exception Nr.

It prints: An exception occurred

It prints: No exception

Section: Volume A

QUESTION 66
What will the variable “y” be in class B?
class A {
int x;
protected:
int y;
public:
int age;
};
class B: private A {
string name;
public:
void Print() {
cout << name << age;
}
};

public

private

protected

None of these

Section: Volume A

QUESTION 67
What is the output of the program?
#include <iostream>
#include <string>
using namespace std;
int main()
{
string s1=”Wo”;
string s2;
s2 = s1;
string s3;
s3 = s2.append(“rldHello”);
cout << s3;
return( 0 );
}

It prints: WorldHello

It prints: HelloWo

It prints: World

It prints: Hello

QUESTION 68
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:
virtual void Print(){ cout<< “B”;}
};
int main()
{
A *obj;
A ob1;
obj = &ob1;
obj?>Print();
B ob2;
obj = &ob2;
obj?>Print();
}

It prints: AB

It prints: AA

It prints: BA

It prints: BB

QUESTION 69
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <cstdarg>
using namespace std;
int mult(int f, int s, int t);
int main()
{
cout << mult(1,2,3);
return 0;
}
int mult(int f, int s, int t)
{
int mult_res;
mult_res = f*s*t;
return mult_res;
}

It prints: 0

It prints: 6

It prints: 2

It prints: 3

QUESTION 70
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;
}
cout<<i;
return 0;
}

1010

100

010

None of these

Section: Volume A

QUESTION 71
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main(int argc, char *argv[]) {
char *s = “ABCDEF”;
cout << s+2;
return 0;
}

It prints: CDEF

It prints: ABCDEF

It prints: BCDEF

None of these

Section: Volume A

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