Which of the following is true with respect to strongly consistent read requests from an application to a DynamoDB with a DAX cluster?

Answer options:

A.All requests are forwarded to DynamoDB & results are cached.
B.All requests are forwarded to DynamoDB & results are stored in Item Cache before passing to application.
C.All requests are forwarded to DynamoDB & results are stored in Query Cache before passing to application.
D.All requests are forwarded to DynamoDB & results are not cached.

Correct Answer – D
For strongly consistent read request from an application, DAX Cluster pass all request to DynamoDB & does not cache for these requests.
Option A is incorrect as Partly correct as for consistent read request from an application, DAX Cluster pass all requests to DynamoDB & does not cache for these requests.
Option B is incorrect as Only for GetItem and BatchGetItem eventual consistent read request, Data is stored in Item Cache.
Option C is incorrect as Only for Query and Scan eventual consistent read request, Data is stored in Query Cache.
For more information on DAX for DynamoDB, refer to the following URL-
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.concepts.html#DAX.concepts.item-cache