Answer:
The correct answer for the given question is " input validation"
Step-by-step explanation:
Input validation is also known as data validation which is used for validate or test the user input .
The example of input validation in c++ programming
#include <iostream> // header file
using namespace std;
int main() // main function
{
int a1; // variable declarartiomn
cout << "Enter the age: ";
cin >> a1;
if(a1> 18) // validate user input
{
cout << "You are eligible for vote :";
}
return 0;
}
In this program we input a age from user and validate this user input that .If user enter age > 18 then it will eligible for vote.
output
21
You are eligible for vote