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Sophie [7]
3 years ago
14

You have been asked to decouple an application by utilizing SQS. The application dictates that messages on the queue can be deli

vered more than once, but must be delivered in the order that they have arrived, and also must allow for efficient, repeated polling of the queue. Which of the following options are most suitable?a. Configure a standard SQS queue and use long polling
b. Configure a FIFO SQS queue and enable long polling
c. Configure a FIFO SQS queue and enable short polling
d. Configure a standard SQS queue and use default polling
Computers and Technology
1 answer:
LuckyWell [14K]3 years ago
8 0

Answer:

Option B is the correct option.

Explanation:

When using SQS the user request to separate a query. The specification specifies that updates on the list may have been transmitted multiple times, but it must be transmitted throughout the sequence in which they appeared, and therefore should require secure, repetitive queue polling.

So, They configure a First In First Out SQS queue and allow long-polling which is suitable for AWS services.

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The following 2D array has been created:
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Answer:

public class Main

{

public static void main(String[] args) {

 

 int [][] a = new int[4][5];

 

 a[0][0] = 1;

 a[0][1] = 2;

 a[0][2] = 3;

 a[0][3] = 4;

 a[0][4] = 5;

 a[1][0] = 10;

 a[1][1] = 9;

 a[1][2] = 8;

 a[1][3] = 7;

 a[1][4] = 6;

 a[2][0] = 11;

 a[2][1] = 12;

 a[2][2] = 13;

 a[2][3] = 14;

 a[2][4] = 15;

 a[3][0] = 20;

 a[3][1] = 19;

 a[3][2] = 18;

 a[3][3] = 17;

 a[3][4] = 16;

 

 for (int i = 0; i < 4; i++) {

     for (int j = 0; j < 5; j++){

         System.out.print(a[i][j] + " ");

     }

     System.out.print("\n");

 }

}

}

Explanation:

  • Inside the main method, initialize the 2D array with their respective values at the appropriate indexes.
  • Iterate over the 2D array using a nested For loop.
  • The outer loop iterates over the rows, while the inner loop iterates over the columns of the 2D array respectively.
  • Finally inside the nested For loop, print the value of 2D array using the i and j index.

Output:

1 2 3 4 5

10 9 8 7 6

11 12 13 14 15

20 19 18 17 16

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