You maintain a DynamoDB table that stores customers’ subscription data. High availability is very important for the table. Even if there is an outage in an AWS region, the application should still access the data from other regions. Which method would you take to achieve this requirement?

Answer options:

A.Create a read replica in another region as a backup.
B.Configure a Multi-AZ backup for the DynamoDB table.
C.Configure a global table to use DynamoDB as a multi-region database.
D.No actions required as DynamoDB is a global service.

Correct Answer – C
Amazon DynamoDB global tables provide a solution for deploying a multi-region, multi-master database. The reference can be found in this link- https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/GlobalTables.html.
Option A is incorrect: Because DynamoDB does not have such a feature.
Option B is incorrect: Because there is no need to configure Multi-AZ for a DynamoDB table, and it is highly available by default.
Option C is CORRECT: With the DynamoDB global table, when one AWS region becomes unavailable, users can still access the same data in other regions.
Option D is incorrect: Refer to option
C.