A firewall determines what external network traffic(internet) should or should not be allowed to pass internal network(computer). A firewall is network security that protects software and hardware from untrusted sites that may have viruses, worms, and bugs that are detrimental to the computer.
Authentication protocols are usually designed and configured to create a number that will be used only once, so as to prevent replay attacks in a computer network. Thus, this number is called a <u>nonce</u>.
Authentication work based on the principle of strategically matching an incoming request from an end user or electronic device to a set of uniquely defined credentials.
In an access control list (ACL), authentication and authorization is used to ensure an end user is truly who he or she claims to be, as well as confirming that an electronic device is valid through the process of verification.
In Cybersecurity, authentication protocols are usually designed and configured to create a nonce, which can be used only once, so as to prevent replay attacks in a computer network.
In conclusion, a nonce is used prevent replay attacks in a computer network because the number created by an authentication protocol can be used only once.
Read more: brainly.com/question/17307459
Answer:
Explanation:
#include <stdio.h>
void main()
{
int j, sum = 0;
printf("The first 10 natural number is :\n");
for (j = 1; j <= 10; j++)
{
sum = sum + j;
printf("%d ",j);
}
printf("\nThe Sum is : %d\n", sum);
}
See below for the modified program in Java
<h3>How to modify the program?</h3>
The for loop statements in the program are:
- for (int i = 0; i < arr.length; i++) { arr[i] = rd.nextInt(1000); }
- for (int i = 0; i < arr.length; i++) { System.out.println(arr[i]); }
To use the enhanced for loop, we make use of the for each statement.
This syntax of the enhanced for loop is:
for(int elem : elems)
Where elem is an integer variable and elems is an array or arrayList
So, we have the following modifications:
- i = 0; for (int num : arr){ arr[i] = rd.nextInt(1000); i++;}
- for (int num : arr) { System.out.println(num); }
Hence, the modified program in Java is:
class Main {
static int[] createRandomArray(int nrElements) {
Random rd = new Random();
int[] arr = new int[nrElements];
int i = 0;
for (int num : arr){
arr[i] = rd.nextInt(1000);
i++;
}
return arr;
}
static void printArray(int[] arr) {
for (int num : arr) {
System.out.println(num);
}
}
}
public static void main(String[] args) {
int[] arr = createRandomArray(5);
printArray(arr);
}
}
Read more about enhanced for loop at:
brainly.com/question/14555679
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