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attashe74 [19]
3 years ago
9

Type dig www.example A in order to get the IP address of www.example. What’s the TTL of the A record returned in the response? W

ait a while, and repeat the query. Why has the TTL changed?
Computers and Technology
1 answer:
fiasKO [112]3 years ago
6 0

Answer:

Your computer now has the IP address of that website cached, and no longer has to lookup the IP address of that domain name. The TTL of the first query is bigger than the TTL of the second query as less time was taken to execute the request.

Explanation:

On the first request to the website, the computer needs to contact other machines to find the record of the IP address.

On the second request, the computer already has the IP address and can use that to connect.

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java Two smallest numbers Write a program that reads a list of integers, and outputs the two smallest integers in the list, in a
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Answer:

The code to this question can be defined as follows:

import java.util.*;//import package for user input

public class Main //defining a class

{

public static void main(String[] args)//defining main method  

{

   int m1,m2,num,t,i;//defining integer variable

   Scanner incx = new Scanner(System.in);//creating Scanner class object

   m1 = incx.nextInt();//input value

   m2 = incx.nextInt();//input value  

   if (m1 > m2)//use if block to check m1 greater than m2  

   {//swapping value

       t = m1;//holding m1 value in t

       m1 = m2;//defining m1 that take m2

       m2 = t;//holding m2 value  

   }

   for (i = 2; i < 6; i++)//defining for loop  

   {

       num = incx.nextInt();//input value  

       if (num < m1) //defining if block to smallest value

       {

           m2 = m1;//holding m2 value in m1

           m1 = num;//holding num value in m1

       }  

       else if (num < m2)//defining if block to smallest value  

       {

           m2 = num;//holding num value in m2

       }

   }

       System.out.println(m1 + " " + m2);//print two smallest values

   }

}

Output:

5

10

5

3

21

2

2 3

Explanation:

In the above code, five integer variable "m1, m2, num, t, and i" is declared, in which it creates the scanner class object for inputs the value and use m1 and m2 use to the input value.

In the next step, if a block is used to swap the value and pass into the for loop that use if block to find the two smallest values and hold its value into the m1 and m2 and print its value.

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Answer:

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Answer:

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