A company is hosting a social media application on AWS. The application makes use of DynamoDB as the backend. The read and write capacity has already been defined for the table. But it has been noticed that during high peak loads, the database begins throttling requests. Which of the following can be used to effectively manage the high number of requests during high peak loads?

Answer options:

A.Place an ELB in front of the DynamoDB table.
B.Add the DynamoDB table to an Autoscaling Group.
C.Enable Autoscaling for the DynamoDB table.
D.Place an SQS queue in front of the DynamoDB table.

Correct Answer: C
The AWS Documentation mentions the following.
DynamoDB auto scaling uses the AWS Application Auto Scaling service to dynamically adjust provisioned throughput capacity on your behalf in response to actual traffic patterns. This enables a table or a global secondary index to increase its provisioned read and write capacity to handle sudden increases in traffic without throttling. Application Auto Scaling decreases the throughput when the workload decreases so that you don`t pay for unused provisioned capacity.
Option D is incorrect because placing an SQS queue in front of the DynamoDB table would not alleviate the problem of throttling requests for the database ( auto-scaling fits the most for throttling requests ).
All other options are invalid since these are not the right principles to be followed when designing for high throughput on the DynamoDB table.
For more information on AWS DynamoDB Autoscaling, please refer to the below URL-
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/AutoScaling.html