Developer Team is working on a new mobile game that will use Amazon DynamoDB to store player details. The team is unsure of the success of this game, but needs to make sure it will meet demand for any number of concurrent players. During the table`s initial creation, they are planning to create a local secondary index to create a top ten players scores dashboard. Also, a global secondary index is created to prepare a separate top ten players per country. IT Head is concerned about the game`s performance, which will be used as a reference for all future games. Which of the following can be used to meet this requirement?

Answer options:

A.Enable Auto-Scaling for DynamoDB Table with same setting applied to Global Secondary Index.
B.Enable Auto-Scaling for DynamoDB Table with same setting applied to Local Secondary Index.
C.Enable Auto-Scaling only for Global Secondary Index.
D.Enable Auto-Scaling only for Local Secondary Index.

Correct Answer – A
For applications where database utilization cannot be predicted, Amazon DynamoDB can be used with Auto Scaling, which can help to scale dynamically to any load. Auto-Scaling needs to be applied to the DynamoDB table and Global Secondary Index that use separate read /write capacity.
Option B is incorrect as the Local Secondary Index uses the same read & write capacity as the primary DynamoDB table. Hence, it needs to enable a separate Auto-Scaling policy.
Option C is incorrect as Auto-Scaling needs to enable for both DynamoDB tables and Global Secondary Index.
Option D is incorrect as Auto-Scaling needs to enable on the DynamoDB table & Global Secondary Index & not on the Local Secondary index.
For more information on using Auto-Scaling with Amazon DynamoDB, refer to the following URL-
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/AutoScaling.html