Conditional Statements Interview Questions Mock Test

Question 1: C++ If Statement

Which of the following is the correct syntax of an if statement in C++?

Question 2: C++ Guess the Output – Simple If

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

#include <iostream>
using namespace std;
int main() {
    int x = 10;
    if (x > 5)
        cout << "Hello";
    return 0;
}

Question 3: C++ If-Else Statement

Which keyword is used in C++ to specify an alternative block of code if the if condition is false?

Question 4: C++ Guess the Output – If-Else

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

#include <iostream>
using namespace std;
int main() {
    int num = 8;
    if (num % 2 == 0)
        cout << "Even";
    else
        cout << "Odd";
    return 0;
}

Question 5: C++ Else-If Ladder

Which statement is true about an else-if ladder in C++?

Question 6: C++ Guess the Output – Else If Ladder

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

#include <iostream>
using namespace std;
int main() {
    int marks = 75;
    if (marks > 90)
        cout << "Grade A";
    else if (marks > 60)
        cout << "Grade B";
    else
        cout << "Grade C";
    return 0;
}

Question 7: C++ Switch Statement

Which of the following is NOT true about the switch statement in C++?

Question 8: C++ Guess the Output – Switch Case

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

#include <iostream>
using namespace std;
int main() {
    int day = 3;
    switch(day) {
        case 1: cout << "Monday"; break;
        case 2: cout << "Tuesday"; break;
        case 3: cout << "Wednesday"; break;
        default: cout << "Invalid";
    }
    return 0;
}

Question 9: C++ Nested If

What is the output of the following C++ code snippet?

#include <iostream>
using namespace std;
int main() {
    int x = 15;
    if (x > 10) {
        if (x < 20)
            cout << "Between 10 and 20";
        else
            cout << "Greater than 20";
    }
    return 0;
}

Question 10: C++ Ternary Operator as If-Else

Which of the following C++ statements correctly uses the ternary operator to check if a number n is even or odd?