A global financial institution is using AWS cloud infrastructure for its three-tier web application. This is a critical application & any outage would incur a huge financial loss to this institute. They have deployed EC2 instance & Amazon DynamoDB in us-west1 & ap-northeast-1. For EC2 instance, high availability is already considered by the Infrastructure team. IT Head is looking for your support to make database tables fully redundant & failure of the database in one region should not impact the working of web applications.
Which of the following will provide a solution for having a highly available database between these two regions?

Answer options:

A.Copy Data from source DynamoDB table to destination region DynamoDB using Amazon EBS snapshots.
B.Copy Data from source DynamoDB table to destination region DynamoDB using Amazon S3 buckets.
C.Use code to replicate data changes for DynamoDB tables between these two regions.
D.Create a DynamoDB global table to replicate DynamoDB tables between different regions.

Correct Answer –D
 Amazon DynamoDB Global table can be used to replicate data from one region to another region automatically.
Options A, B, C are incorrect as although this would work, this will add additional admin work for replicating data between regions.
For more information on the Amazon DynamoDB Global table, refer to the following URL-
https://aws.amazon.com/dynamodb/global-tables/