An application uses a DynamoDB table to store data with each record being 6KB in size. The application needs to perform 100 eventually consistent read operations per second and 40 write operations per second. What is the provisioned WCU value required to meet these requirements?

Answer options:

A.160
B.240
C.80
D.120

Answer: B
Option B is CORRECT.
One write capacity unit is equivalent to one write per second for an item up to 1 KB in size. Thus, the required WCU in this scenario is 6KB x 40 write operations per second = 240 WCU.
Reference:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.ReadWriteCapacityMode.html#HowItWorks.ProvisionedThroughput.Manual