Your team is developing a solution that will make use of DynamoDB tables. Due to the nature of the application, the data is needed across a couple of regions across the world. Which of the following would help reduce the latency of requests to DynamoDB from different regions?

Answer options:

A.Enable Multi-AZ for the DynamoDB table.
B.Enable global tables for DynamoDB.C.Enable Indexes for the table.
D.Increase the read and write throughput for the table.

Answer - B
The AWS Documentation mentions the following.
Amazon DynamoDB global tables provide a fully managed solution for deploying a multi-region, multi-master database without building and maintaining your own replication solution. When you create a global table, you specify the AWS regions where you want the table to be available. DynamoDB performs all of the necessary tasks to create identical tables in these regions and propagate ongoing data changes to all of them.
Option A is incorrect because there is no such option of Multi-AZ. And this is enabled by default as data is replicated across at least 2 AZs.
Option C is incorrect because there is no such feature.
Option D is incorrect because increasing read and write capacities does not help to reduce latency in different regions.
For more information on Global tables, please refer to the below URL-
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/GlobalTables.html