Answer:
The code will be a java-script code
Explanation:
public abstract class Phone{
private String phoneNumber ;
public Phone (String thePhoneNumber) {
phoneNumber = thePhoneNumber ;
}
public String getPhoneNumber ( ) {
return phoneNumber ;
}
public String toString ( ) {
phoneNumber = "# (" + phoneNumber + ") " ;
return phoneNumber ;
}
public abstract boolean createConnection (Network status) ;
public abstract void closeConnection( ) ;
}
Answer:
Using the DNS service.
Explanation:
The computer sends a UDP packet with the domain name in it to port 53 of the configured DNS server, and expects a reply with the IP address of that domain.
