Answer:
Host discovery
Explanation:
Hot discovery is one of the preliminary stages of network reconnaissance, it begins with different IP addresses that belongs to a particular network and adopts various methods to scan and know if a host is at the IP address. Host discovery is also known as ping scan when a sonar analogy is used.
Host discovery helps to scan the particular type of host on one's network.
Answer:
import java.util.Scanner;
import java.util.Arrays;
public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int numbers[] = new int[3];
System.out.print("Enter first number: ");
numbers[0] = scan.nextInt();
System.out.print("Enter second number: ");
numbers[1] = scan.nextInt();
System.out.print("Enter third number: ");
numbers[2] = scan.nextInt();
scan.close();
Arrays.sort(numbers);
if (numbers[0] == numbers[2]) {
System.out.println("All the numbers are equal");
} else {
System.out.printf("Greatest number: %d\n", numbers[2]);
}
}
}
Answer:
(B) A single public IP address that it can use for NAT
Explanation:
Because the IPV4 IP protocol is still used today, the number of available IP addresses is limited (only 4,294,967,296 addresses in the world), for this reason, the most correct practice is the assignment of a single public IP to those companies that acquire services from an ISP, with some few exceptional cases of companies that own several.
So that the company's addressing can be executed successfully, the use of NATs is enabled, this allows the translation of network addresses, allowing the company to have as many private networks as necessary and that these can be communicated Correctly with the global network, the Internet, through the public IP of the company.
