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KeyValue Assessment- Batch 2026 Screening Test

Software Engineering MCQ Test

Questions List

Total Questions

40 Questions

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Duration

60 Minutes

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College/Institution is required
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1
What is the output of the following code? 
#include <iostream>
using namespace std;
int main() {
    int a = 10;
    int &b = a;
    b = 20;
    cout << a;
}
2
What is the output of the following code? 
#include <iostream>
using namespace std;
void fun(int a, int b = 5, int c = 10) {
    cout << a << " " << b << " " << c;
}
int main() {
    fun(1, 2);
}
3
What is the output of the following code? 
#include <iostream>
using namespace std;
void test(int x) {
    static int y = 0;
    y += x;
    cout << y << " ";
}
int main() {
    test(5);
    test(10);
    test(15);
}
4
What is the output of the following code? 
#include <iostream>
using namespace std;
void fun(int n) {
    if (n == 0) return;
    fun(n - 1);
    cout << n;
}
int main() { fun(3); }
5
What is the output of the following code? 
#include <iostream>
using namespace std;
int main() {
    int a = 10;
    cout << sizeof(++a);
    cout << " " << a;
}
6
What is the output of the following code? 
#include <iostream>
using namespace std;
int main() {
    int arr[] = {10, 20, 30};
    int *p = arr;
    cout << *(p++) << " " << *p;
}
7
What is the output of the following code? 
#include <iostream>
using namespace std;

class Base {
public:
    Base() { cout << "B"; }
    virtual ~Base() { cout << "~B"; }
};

class Derived : public Base {
public:
    Derived() { cout << "D"; }
    ~Derived() { cout << "~D"; }
};

int main() {
    Base* obj = new Derived();
    delete obj;
    return 0;
}
8
Find the output of this Python code snippet 
s = {1, 2, 3}
s.add([4, 5])
print(s)
9
What is the output of the following code? 
#include <stdio.h>
#define PRINT(x) printf(#x " = %d\n", x)
int main() {
    int a = 5, b = 10;
    PRINT(a + b);
    return 0;
}
10
What is the output of the following code? 
public class Main {
    public static void main(String[] args) {
        int x = 2;
        switch(x) {
            case 1: case 2: case 3:
                System.out.print("A");
            case 4: case 5:
                System.out.print("B");
            default:
                System.out.print("C");
        }
    }
}