Question

What does 1 WCU represent in DynamoDB?

(A) One read operation per second
(B) One write operation per second
(C) One read or write operation per second
(D) None of the above

Answer 1

In DynamoDB, 1 WCU represents one write operation per second.

Step-by-step explanation:

In DynamoDB, 1 WCU (Write Capacity Unit) represents one write operation per second. A WCU measures the amount of write throughput capacity that is needed for a table or index. Each write operation consumes a certain number of WCUs, depending on the size of the item being written. For example, if an item size consumes 1 WCU and you want to write 100 items per second, you would need a provisioned write capacity of 100 WCUs.