Questions and answers for exam Preparation

MCQs

Total Questions : 10

Question 1.

What will happen when the handler is not found for exception?

Calls the standard library function terminate()
raise an error
executes the remaining block
none of the mentioned

Discuss Question

Answer: Option A. -> Calls the standard library function terminate()

None.

Question 2.

What is the output of this program?

1.
#include
2.
#include
3.
using namespace std;
4.
int main()
5.
{
6.
try {
7.
int * array1 = new int[100000000];
8.
int * array2 = new int[100000000];
9.
int * array3 = new int[100000000];
10.
int * array4 = new int[100000000];
11.
cout

Allocated successfully
error allocating the requested memory
Depends on the memory of the computer
none of the mentioned

Discuss Question

Answer: Option C. -> Depends on the memory of the computer

In this program, we allocating the memory to the arrays by using excetion handling and

we handled the exception by standard exception.
Output:
$ g++ excep5.cpp
$ a.out
Allocated successfully

Question 3.

What is the output of this program?

1.
#include
2.
using namespace std;
3.
void Funct();
4.
int main()
5.
{
6.
try {
7.
Funct();
8.
}
9.
catch(double) {
10.
cerr

caught a double type
compile time error
abnormal program termination
none of the mentioned

Discuss Question

Answer: Option C. -> abnormal program termination

As we are throwing integer to double it will raise as abnormal program after termination throw

statement.
Output:
$ g++ excep4.cpp
$ a.out
terminate called after throwing an instance of â€˜intâ€™
Aborted

Question 4.

What is the output of this program?

1.
#include
2.
using namespace std;
3.
int main()
4.
{
5.
char* buff;
6.
try {
7.
buff = new char[1024];
8.
if (buff == 0)
9.
throw "Memory allocation failure!";
10.
else
11.
cout

4 Bytes allocated successfully
8 Bytes allocated successfully
Memory allocation failure
depends on the size of data type

Discuss Question

Answer: Option D. -> depends on the size of data type

As we are allocating the memory to the variables and if there is not suffcient size means, it

will throw an exception.
Output:
$ g++ excep3.cpp
$ a.out
4 Bytes allocated successfully

Question 5.

What is the output of this program?

1.
#include
2.
using namespace std;
3.
double division(int a, int b)
4.
{
5.
if (b == 0) {
6.
throw "Division by zero condition!";
7.
}
8.
return (a / b);
9.
}
10.
int main ()
11.
{
12.
int x = 50;
13.
int y = 2;
14.
double z = 0;
15.
try {
16.
z = division(x, y);
17.
cout

25
20
Division by zero condition!
none of the mentioned

Discuss Question

Answer: Option A. -> 25

In this program, we resembling the division by using the exception handling.
Output:
$ g++ excep2.cpp
$ a.out
25

Question 6.

What is the output of this program?

1.
#include
2.
using namespace std;
3.
void PrintSequence(int StopNum)
4.
{
5.
int Num;
6.
Num = 1;
7.
while (true) {
8.
if (Num >= StopNum)
9.
throw Num;
10.
cout