Answer:
cout<<"User Age is ="<<userAge<<endl;
Explanation:
#include<iostream>
using namespace std;
int main()
{
int userAge;
cin >> userAge; // Program will be tested with values: 15, 40.
cout<<"User Age is ="<<userAge<<endl;
return 0;
}
There are some function which can be performed with database but not with a spread sheet, these functions include:
1. Enforcement of data type.
2. Support for self documentation.
3. Defining the relationship among constraints in order to ensure consistency of data.
Answer:
a.JavaScript
Explanation:
<em>Form validation</em> is adopted to prevent the abuse of web form by malicious users, data that are not properly validated causes or leads to security vulnerabilities, thereby making a website to be at a risk of being attacked by malicious users.
<em>Validation rules</em> checks that the data a user enters in a record meets the specify standards before the user is allowed to save the record, a validation rule evaluates the data in one or more fields and return it as true or false.
<em>JavaScript form validation can be used to check all required fields, the steps are adopted are:</em>
<em>i) Basic validation − The form is first checked to make sure that all the mandatory fields are filled.</em>
<em>ii) Data format validation −The data that is entered is then checked for correct form and value before allowing to proceed, submit or save the record.</em>
Answer:
Normalization
Explanation:
Converting a poorly-structured table and optimizing its database structure in order to reduce redundancy in relations can be referred to as database normalization. If the data is not redundant means that data inconsistencies and errors like deletion and insertion will get reduced or eliminated significantly.
