Answer: Well known ports
Explanation:
DHCP server transmit the response to the dynamic host configuration server protocol (DHCP) clients. DHCP default port is 67 and its port number is greater than the user data-gram specific port.
FTP server has its default listen at port 21 and file transition protocol(FTP) uses two transmission control protocol(TCP) connection for communication in the network. FTP passes information in port number 21, which is only used to send control information.
Well known port are use to identify the service of network on the public internet and private internet network. Therefore, port 21 and 67 are the well known ports.
Answer:
In Java:
import java.util.*;
public class Main{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String isbn;
System.out.print("First 1:2 digits: ");
isbn = input.nextLine();
if(isbn.length()==12){
int chksum = 0;
for(int i = 0; i<12;i++){
if((i+1)%2==0){ chksum+= 3 * Character.getNumericValue(isbn.charAt(i)); }
else{ chksum+=Character.getNumericValue(isbn.charAt(i)); } }
chksum%=10;
chksum=10-chksum;
if(chksum==10){
System.out.print("The ISBN-13 number is "+isbn+"0");}
else{
System.out.print("The ISBN-13 number is "+isbn+""+chksum); } }
else{
System.out.print("Invalid Input");
} }}
Explanation:
See attachment for explanation where comments are used to explain each line
Answer:
Explanation:Mind mapping software can help you to make connections and become a better creative problem solver.
...
It helps you to make better decisions. ...
It helps you to become better organized. ...
You can see the forest and the trees. ...
It helps you to identify, prioritize and track key project tasks.
Answer:
acceleration = 4.76 m/s²
Explanation:
Given that"
the mass of the dynamic trolley = 0.6 kg
the mass of the load = 1.5 kg
total mass = (0.6 + 1.5) kg = 2.1 kg
the force = 10 N
Thus;
using the formula of force which is;
Force = mass × acceleration
10 = 2.1 × acceleration
acceleration = 10/2.1
acceleration = 4.76 m/s²
<span>Budget for fixed expenses before flexible expenses.</span>
