Question

What is RCU in DynamoDB?

(A) Read Capacity Unit
(B) Write Capacity Unit
(C) Reserved Capacity Unit
(D) Regional Capacity Unit

Answer 1

In DynamoDB, RCU represents Read Capacity Unit, which measures read throughput for items up to 4 KB in size and is central to DynamoDB's performance and billing.

Step-by-step explanation:

RCU stands for Read Capacity Unit in DynamoDB. It is a measure of throughput for read operations in DynamoDB and defines the number of strongly consistent reads of items up to 4 KB in size allowed per second. One read capacity unit represents one strongly consistent read per second, or two eventually consistent reads per second for items up to 4 KB. This is an important aspect to consider when setting up and managing your DynamoDB tables, particularly in terms of cost and performance.