I think it’s B if not it’s D both are similar
Answer:
Internet Control Message Protocol (ICMP) Echo Requests
Explanation:
A system that has Windows Firewall or antivirus or other third party antivirus enabled with their configuration setting set to default, ping command from another device will not be able to see if the device with an enabled firewall is alive.
The ping command sends Internet Control Message Protocol (ICMP) Echo Request to a destination device after the destination device will reply with a Reply packet. However, by default, firewalls, such as Windows firewall blocks ICMP Echo Requests from the external network and pinging will work when the firewall is disabled or an exception is created that lets ICMP Echo Requests pass through the firewall.
80 for HTTP, 443 for HTTPS
1) Bricklayer 2) Roofer 3) Architectural drafter 4) landscape architect
Answer:
import java.util.Scanner;
public class num6{
static int getTestScores(){
System.out.println("Enter the Score");
Scanner in = new Scanner(System.in);
int score = in.nextInt();
return score;
}
static double calcAverage(int score1, int score2, int score3){
return (score1+score2+score3)/3;
}
static void displayAverage(double ave){
System.out.println("The Average is "+ave);
}
public static void main(String[] args) {
int num1 = getTestScores();
int num2 = getTestScores();
int num3 = getTestScores();
//Calling Calculate Average
double average = calcAverage(num1,num2,num3);
//Calling displayAverage
displayAverage(average);
}
}
Explanation:
- Using Java programming Language
- Create the four methods
- getTestScores() Uses the Scanner Class to receive an in variable and return it
- calcAverage() accepts three ints as parameter calculates their average and return it
- displayAverage() Accepts a double and prints it out with a concatenated string as message
- In the Main Method, getTestScores is called three times to obtain three numbers from the user
- calAverage is called and handed the three numbers
- printAverage is called to output the calculated average
