<span>When a researcher uses given data to make a prediction, this is known as a hypothesis. The hypothesis generally serves as a starting point for future research, allowing a researcher to further develop their theory through additional testing, observation, and, if necessary, revision to the current hypothesis.</span>
<span>An attribute in a relation of a database that serves as the primary key of another relation in the same database is called a
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Answer:
Encapsulation:-It is the binding of the data and functions so that they works as one unit.
Inheritance:-When one class acquires the property of another class it is called inheritance.
Polymorphism :-It generally means more than one form
Explanation:
Encapsulation:- class is an example of encapsulation it can hold different data types and functions in a single container called class.
class Name{
public:
string first_name;
string last_name;
void Display()
{
cout<<first_name<<" "<<last_name<<endl;
}
};
Inheritance:-The property of a class acquiring the properties of another class is called inheritance.
Now we will inherit the above defined class.
class person: public Name
{
public:
char gender;
int age;
void Display()
{
cout<<first_name<<" "<<last_name<<gender<<age<<endl;
}
};
int main()
{
Name n;
person p;
n.Display();
p.Display();
}
Polymorphism- There are two types of polymorphism:-
1.Run time polymorphism=The values are decided at run time.
2.Compile time polymorphism=The values are decided at compile time.
Example:-In the above example we have function Display() in both the classes.This is an example of compile-time polymorphism. We are deciding at the time of compilation which display to use.
Answer:
Internet
Explanation:
A collection of a set of instrument that solve a problem is called the internet.
The Internet is an enormous networking infrastructure that uses the Internet protocol suite (TCP/IP). It connects millions of computers together globally, forming a network in which computers can communicate with each other provided that they are both connected to the Internet.
The Internet contains billions of web pages and resources created by software engineers from around the world, making it a limitless place to locate information and solve peculiar problems.
Answer:
Network Address Translation (NAT)
Explanation:
With the aid of Network address translation(NAT), the IP addresses of a particular local network are translated or mapped into a single or multiple global or public IP addresses. Therefore, a wireless router could use NAT to translate its private IP address on internal traffic (network) to a routable address for the internet.
With NAT, businesses can use many internal IP addresses since they are just for internal purposes and will be eventually converted into a single or a few multiple routable IP addresses.
Three types of NAT are possible:
(i) Static NAT : There is a one - to - one mapping between private IP addresses and routable (public) IP addresses. One private IP is mapped to one public IP address.
(ii) Dynamic NAT : There is a many- to - many mapping between private IP addresses and routable (public) IP addresses. Multiple private IPs are mapped to many public IP addresses.
(iii) Port Address Translation (PAT) : Many - to - one relationship between the private IP addresses and public addresses. Many private IP addresses can be mapped or translated into a single public IP address. This type of NAT is also called NAT overload.
