Question: 6 -

What is the name of | operator?

and

modulus

or

sizeof

Answer:

or

Solution:

| operator is used to find the ‘or’ of given values.

Question: 7 -

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main() {

    int a = 0;
    int b = 10;
    a = 2;
    b = 7;
    if (a && b) {
        cout << "true: " << endl;
    }
    else 
    {
        cout << "false: " << endl;
    }
    return 0;
}

error

10

false

true

Answer:

false

Solution:

&& is called as Logical AND operator, if there is no zero in the operand means, it will be true otherwise false.

Question: 8 -

What is the associativity of add(+); ?

right to left

left to right

right to left & left to right

top to bottom

Answer:

left to right

Solution:

left to right is the associativity of add(+);.

Question: 9 -

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main() {

    int a, b, c;
    a = 2;
    b = 7;
    c = (a > b) ? a : b;
    cout << "c: " << c;

    return 0;
}

2

9

14

7

Answer:

7

Solution:

We are using the ternary operator to evaluate this expression. It will return first option, if first condition is true otherwise it will return second

Question: 10 -

Which operator is having the highest precedence in c++?

Scope resolution operator

array subscript

static_cast

dynamic_cast

Answer:

Scope resolution operator

Solution:

Scope resolution operator is having the highest precedence in c++.