An application uses Amazon DynamoDB. During peak hours, the application experiences ProvisionedThroughputExceededException errors. The workload is highly unpredictable. What is the MOST cost-effective and operationally efficient way to resolve this?

Answer options:

Implement exponential backoff in the application code.

Configure DynamoDB Auto Scaling with a target utilization of 70%.

Change the DynamoDB table to On-Demand capacity mode.

Provision the table to the maximum expected peak capacity.

How to approach this question

Match 'unpredictable workload' with the appropriate DynamoDB capacity mode.

Full Answer

C.Change the DynamoDB table to On-Demand capacity mode.✓ Correct

DynamoDB On-Demand capacity mode is designed specifically for unpredictable workloads. It instantly scales to accommodate traffic spikes without the delay associated with Auto Scaling.

Common mistakes

Choosing Auto Scaling, which can be too slow for sudden, sharp spikes.

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