Briefing Amazon Knowledge

How many write capacity units should you provision duri…

You need to migrate 10 million records in one hour into DynamoDB. All records are 1.5KB in size. The data is evenly
distributed across the partition key. How many write capacity units should you provision during this batch load?

A.
6667

B.
4166

C.
5556

D.
2778

Explanation:
You need 2 units to make a 1.5KB write, since you round up. You need 20 million total units to perform this load. You
have 3600 seconds to do so. Divide and round up for 5556.
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.ProvisionedThroughput.html