AWS Certified Solutions Architect – Professional — Question 651

In regard to DynamoDB, for which one of the following parameters does Amazon not charge you?

Answer options

• A. Storage cost
• B. I/O usage within the same Region
• C. Cost per provisioned read units
• D. Cost per provisioned write units

Correct answer: B

Explanation

Amazon DynamoDB charges for data storage and provisioned throughput (read and write capacity units). However, standard I/O usage and data transfer within the same AWS Region are free of charge. You are only billed for data transfer when moving data across different Regions or out to the internet.